Just a wonderful game. The last time I was so emotionally involved in a game was with Brothers: A Tale of Two Sons nine years ago and for the first time in 40+ years of playing video games, I replayed Stray the day after completing it. I've never replayed a game after completing it.
My only complaint is that after completing a level, if you miss some of the 'Memories' you can collect and decide to go back to that level, you have to replay the entire story part of it. It really should just be Free-Play. I hope the developers can find a way to expand the story as it would be a real shame if this was a one-off game.