I'm torn on this. I can appreciate what Divinity did with the seemless maps but everything felt kind mushed together. I always find it immersion breaking in games like this that the ancient lich lair is a short hike from town. I like feeling that I have gone far off the beaten path to find something in the wilderness.
Acts don't bother me as much. BG2 had acts but they didn't lock you out of the areas you had been to previously. I want to be able to return to a place I have been to see what impact my choices have had or to address a new situation that pops up.