This is mine and only my opinion on this and I hope you'll understand my point of view.

All the things that I liked.

First things first. Erased is awesome, I often really like the time travel ability in anime and stuff, and this one is just, YEAH.
The first episode is really what surprised me and got into it. Unsuccessful mangaka that works as a pizza delivery man, that later shows that he has the ability to rewind time by 2 to 5 minutes. Saves a kid but gets into an accident, not really sufferring any major damage. His young-looking 52 year old mother visits him and then kinda makes him remember what happened in his childhood, giving us the information why he has a "hole in his heart". Or something like that, philosophy stuff. He then later with his mother prevents another child abduction by the main killer of the show... (All of this is in the first episode, so I don't need to write an entirety of it here as you should already know it.)

Predicted the end of the episode by guessing that he will go back like really far into the past after his mother gets killed, and because of that I wanted to watch it even more.
My friend later joined and started making Steins;Gate references which kinda added a bit to the experience. But also prevented me from getting all the emotions I could've had in the fullest. (Not important)

I really, really liked the child Satoru with a mind of 29 years old man, that was pretty funny when he mentioned it in some situations. And I also liked how much he wanted to save Hinazuki, everything he did was cute and wholesome and I really liked that. Gave me warm feelings. (Typing so much "liked" to show how much I enjoyed this.)

Was a bit sad that he couldn't save Hinazuki even after doing so much. He only delayed her death by 1 day. But it was to be expected because it was only 4 episodes in.

Then we learned that because of it he didn't really change the history, only that on a paper she was 11 instead of 10 and her death date wasn't 2nd March but 3rd.

Also the relationship between Airi and Satoru gets better and I think that was cute.

After he gets caught and arrested because of Airi (not her fault) he desparetly activated "Revival" and went back again, gave himself a second chance. Would be awkward that after shouting "TAKE ME BACK", he would just stand there, shocking some people, not accomplishing anything.

And again, it was really cute and wholesome with Hinazuki and Satoru together, making us think that they would be in a great relationship in the future. More warm feelings. All of his friends trying everything to help him help others. Kenya helped the most. He kinda himself changed the future with Satoru by just wanting to talk to him. Cool stuff!

Satoru while trying to save Hinazuki (and succeeding), also goes out to try and help other victims and the potential ones. By this he saves Hiromi and Aya.

Also, the opening is even better after watching this! I used to listen to it sometimes without knowing anything about the anime, but after watching it, it really is impactful. Because it reminds me mostly of Satoru and Hinazuki, which is cute and wholesome at the same time. <3

And now.

All the things that I did not like.

Pretty much the entire ending. Because of that I can't give this 10/10. Unsatifying.

Satoru not getting the fact that Misato could not leave the bathroom by any means. Like, he saw her going into the bathroom. Why would he believe that she could just leave without him noticing that? She didn't even know he was there so she would not have any reasons to go out the window if it was there??? Also she could not leave the same way the teacher came to see Satoru, because why would she??? He is 29 years old mentally, he should've known that! Well, maybe he just trusts his teacher more. BUT THAT SHOULDN'T BE THE REASON WHY HE DIDN'T SUSPECT EVEN HIM! (He realized his mistake later but AHHH.) That just shows that Satoru is too trustful... And I hate that. (Maybe I just watched too much anime with good endings but oh well. I am me.)
ALSO HE COULD JUST BRING AT LEAST KENYA ALONG... (or he could follow him, they all are too trustful) :(

Because of that he gets into one of Yashiro's traps. He catches his bait and thinks Misato is inside the trunk of someone's delivery truck (forgot who's) and because of that he falls into another trap. I still don't get why he gets into a car that's clearly white, not dark blue? That's clearly not Yashiro's car... But maybe he was just in a rush and did not notice that, I can get that. Still, annoying.

Satoru's belt is stuck (another trap) and because of that he just gets dumped into the water with a car... Not dying, but gets into a coma for 15 years... Which he obviously could avoid by not getting into the stupid car.

15 years later and he wakes up. His mother is alive and happy and every one of his friends are saved. They come to visit him and then... We see that Kayo has a child with Hiromi... (Satoru gets his memories back because of it ofc) well, this is kinda depressing after seeing Kayo and Satori getting along together so well in the past, expecting to see them together in the future, married. But this is very understandable since he was in a coma, but still sad and unsatisfying. :(

Then the ending of the ending.
Satoru meets Yashiro and of course, Yashiro makes his move. Puts something in Kumi's medication just before the surgery and brings Satoru to the hospital's roof. They talk and Satoru of course tells him that he recovered his memories. Then we learn that Yashiro's been taking care of him too, when he was in a coma. Trimming his nails, cutting his hair. They talk some more and then Satoru says that he cannot kill him. Then he rushes in his wheelchair into the opening on the roof to fall off. Yashiro saves him, not allowing him to fall off. Satoru says that Yashiro cannot live without him, that he is filling that hole in his heart (from his own philosophy). Which then he agrees on, he releases Satoru's wheelchair, making him fall off. And after a while, he is getting ready to kill himself. Only that everyone is at the bottom, firefighters, police and Satoru's friends (who saved him from the fall). Telling him to surrender as he is caught on attempting a murder. (Damn, I do not like typing out half of an episode xd)

Yashiro didn't kill himself because Satoru survived, so he had not reason to. Yeah, that's cool. It shows us that Satoru ultimately won by having his friends and family save him in return for what he's done.

Some years later and Satoru can walk again, gets his job as a manga creator and that's pretty much all. He doesn't get anymore "Revivals", he meets with his friends, and then we see him going outside, meeting Airi once again, in this new perfect timeline he created. Also we see the "Revival" butterfly at the end, probably showing us that everyone who he met in the past timeline, will meet in this one.