Really enjoyed this game, though the difficulty is a bit all over. My main gripe is the HP scaling, particularly on the doppelganger fight, since it seems to be based off your level - Enemies take far too long to kill, especially before getting endgame gear.
The other thing is I can't for the life of me find the last crafting recipes. Based off someone else's comment, it seems there are supposed to be three portals in the last sidequest with the arena fights for Lex's best weapon. I could only find the one near Lumbly Bridge. I did do the arena refights first, and the quest pointed me back to the guard in Regull. The only thing I can think of is that doing the arena first broke the other portals, because they're not where they were said to be.