I'm playing through SH4 for the first time on PCSX2 right now and shit's kinda rough tbh. A bit surprised most hardcore SH fans seem to like it so much, especially since I'd mostly just seen people dump on it over the years.
The atmosphere's pretty on point, the Twin Victims are fucking HORRIFYING, and the story's fairly intriguing, much more than SH3's for me. But that doesn't make up for, like... all the other stuff.
Room of Angel is also one of my favourite tracks in the series now (context helps a lot), although I'm a bit surprised at the lack of a soundtrack for most of the game. I'm genuinely not sure if it hasn't been there or if I just haven't noticed it, which is rare.
A full-blown remake would probably fuck super hard, but I don't know if I want to see this entire series get remade like RE currently is. The thought of SH2 being remade especially fills me with dread. A proper remake of SH1 would be incredible, but I doubt they'd just stop there.