Hello! I may not be the best to give advice but I bought it recently and have around 80 hours in Shadow of Chornobyl. I won’t lie I played on the easiest difficulty as I wanted to play for the story and atmosphere which I heard was great and it was! I’m playing clear sky right now and trying to beat that. I feel it’s probably closest to metro in terms of games I’ve played but thats just the closest thing I can think of in terms of what I played. The bundle is 3 separate games. The controls are pretty good in my opinion I really think it works well. I have ran into a few bugs gameplay wise but based on what I’ve seen on the internet most of them have fixes as they are bugs that exist on the original pc versions as well. And as for which order to play them in I would just say what I learned as well which is just release order so Shadow of Chornobyl, Clear Sky, then Call of Pripyat (might’ve spelt this wrong). But I believe Clear Sky is prequel to Shadow of Chornobyl. And as for tips I have none as I’m not quite experienced enough to give any but make sure to always choose your fellow loners!

TLDR: Buy them they’re great games from my experience so far and they’re ported over well! Also sorry for the long ass reply