While I did finish Skyrim (I've got 110+ hours in it), I found KoA to be a heck of a lot of fun and just a pleasure to finish. The graphics are fine (not great, not bad) and the sound is forgettable. The RPG elements though work real well. Like most modern RPGs you aren't exactly locked into a class and you can even reset all your character decisions during the game. While game play is pretty much divided between stealth (finesse), fighting (might) and magic (sorcery), you can create many different combinations of these to fit your particular style. (I chose might/sorcery.)
One thing the game does very well is providing you with a sense of continuous improvement. I'm not talking about just advancing levels but an overall sense of growth into a kick-ass adventurer. Even though I've finished the main game, I'm planning on getting the DLC just as an excuse so I can see how far my character can progress.
Anyway - if you are looking for a fun RPG and are a bit worried about a Skyrim-level commitment, consider picking up KoA.
p.s. It has been a while since I posted a review. Sorry - going to try to get back into the habit.