While I haven't gone very far, first impressions are great, this is simply put an improved version of Soul Reaver 1 and 2, better visuals, support for current controllers, no need for additional patches or mods. Very similar to the Tomb Raider 1-2-3 Remasters, with even a toggle for the old and new visuals. If you're into adventure games that rewards exploration in a Zelda like fashion, there's a good chance you'll like this and the story is an excellent dark fantasy with a focus on matters of choice and fate, the dialogues will keep you well invested, especially the 2nd game.
Though now a few things have been added like a map indicating the locations you have visited, it's a simple new feature, a compass and there isn't much else more, in its core, this is still the same Soul Reaver experience which requires you to explore, consult the friendly characters for pointers as to where you should go if you're lost and when loading a game it starts you off in the beginning which then you'll either walk all the way back or take a teleporter closest to where you left off, so BEWARE, if you were expecting a perfect save state option and objective markers saying "Go here dummy!", then this might turn you off.
Other than that, they added many bonuses such as unfinished levels, video reels of the recording sessions with the voice actors (Who are absolutely amazing with their performances) and lots of other extras for those curious to learn more about how these games were designed.
Overall I'm really happy with what's on offer here.