Myst games and its ilk have always received some stick for being completely pre-rendered with all the disadvantages tied to that. Uru was the first and only of the Myst games to go the full 3D approach (Real Myst not counted) and I must say, it did it quite well!
Sure, the graphics don't look quite as good as they did back in 2004 but on the other hand, the game will run as smooth as butter which will only improve the experience. The puzzles are still classic Myst ones (so rather abstract) but many now make use of the full-roaming world.
But most important of all: the atmosphere of the game is probably the best of all Myst games. This is purely subjective, I realise, but I find atmosphere in a game like this is paramount and when you're stuck, it's meant to make the experience still relaxing and enjoyable. Nothing worse than trying to solve a frustrated puzzle in a dull world!
All in all, a worthy addition to the Myst series. Personally, it's my favorite because it's that bit more userfriendly!