The UI mod gives you the best version of the base game, it is an unofficial patch of the base game issues. The J&P mod completely overhauls the game and makes it much more challenging.
I'm an old school RPG player. When I look back at "game changer" releases in chronological order, I point to the original SSI gold box games in the 80's, Diablo and D2 in the 90's and 2000. Morrowind/Oblivion/Skyrim, and then Witcher III. I am almost embarrassed to say how many hours I've spent on this game and it's expansions. 2000 hours is a full work year in the US and I'd guess I have at least that many hours into the Xbox One version. I actually bought my Xbox One just because it ran so much smoother on console than it did on my gaming PC at the time. For me, I am single-player campaign type of guy, so I LOVE the direction CDPR has taken the genre. It's currently the best game out there and that's saying something given that it's about 5 years since it was released.
