I like puzzles when they're well done and I thought for thr most part they were in LoS. There weren't really any that I thought weren't enjoyable and it can be a nice way to break things up a bit.
I think they add nothing to an action/adventure game other than wasting time. And even when I think about it, puzzles in general(in fantasy games) are kinda stupid. Say you have castle in ancient times. Why would the king have this backbreaking puzzle just to open certain gates or such. Imagine you are put in the shoes of a guard, or even the king. You had too much wine and now you gotta take a leak, but to get to the royal washroom, you have to exit through the sun gate by charging the sun stone at the eastern window, and to get the sun stone, you must solve an intricate puzzle. I know it's all fantasy, but there's really NO logic behind puzzles in fantasy games. Castles and temples would more likely have death traps than puzzles. Hell, for CV, I'd prefer JUST traps. It's not like, to enter the king's chamber, you need to collect the 7 scattered pieces of the queen's gem amulet, place them on a pedistal in order of the colored jewel on each piece corresponding to the place they are on the rainbow(bottom to top on the spectrum) just to open that door. It's simply ludicrious.
Or, LOL, the ones that get me pissed the most. You got three levers(or buttons), and each one has some effect on the other two, so you have to push them in order to get through the puzzle, almost resulting in all the buttons being turned on together, or switches lining up. I could just see the puzzle setter thinking this shit up and explaining it to the high priest or king:
Puzzlemaster: Yeah, see this awesome puzzle. You need to push all these buttons in, and then the door opens! But, the trick is, once you push one in, it pushes another out. You need to do it in a certain order!
King: I think you got too much time on your hands!