Could you please explain what you mean by cozy changes?
Well generally I meant quality changes and the expansion/rework of areas.
re:QoL I remember on old playthroughs of the unmodded game I would find doing any of the storylines involving the park tiresome because walking from one end to the other was a slog. Now with the teleport I can skip areas that are too-big. Also being able to wash the church windows to earn money reliably is a lifesaver.
re:areas I love the new areas like the church or the arcade. They have a certain warmth or livliness that a lot of the original areas didn't. I'd suspect it's because there are NPCs walking around so it doesn't feel dead. The areas for the store where there are actual streets to walk between the multiple stores are very nice too. The streets don't feel overly wide (like the streets in the housing area for instance) and the distances between shops are long enough that you feel like you're "doing something" without it feeling like an intentional time waster. Also I can't say for certain if things are changed or if I just have a bad memory but the house feels a lot more 'warm' too. New spritework perhaps?
I haven't spent enough time on the new characters to really have an opinion yet (grandma looks promising) and so far I've liked all of the reworked artwork I've seen. I especially like Kimberly's rework, having her face actually look asian makes her a lot more distinct.
Since I've got your attention I'll complain about the two bad things I've encountered so far
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. I've gotten locked on the overworld map when attempting to go to the question mark in the bottom right of the map...Said I couldn't go there and then I could not move off of it, teleport away, or access the menu. Similarly I've gotten locked when the event plays for the teacher getting chewed out by the principal for kissing her husband. It triggered when I entered the area from the top entrance (like the one that goes to the cafeteria) instead of the bottom entrance and I think it was unable to complete because of the MC sprite being in the wrong place. Not huge problems since both times I just knew not to repeat my mistake but it can be frustrating if you haven't saved in a while.