I found some of the puzzles to be a tad cryptic, only for the fact that there was a lack of supporting Mementos.
For example, the part where you're in complete darkness and you have to navigate toward the sounds you hear. I just thought something was wrong with my game, so I started moving around and eventually proc'd the next section. Putting the meat specifically on the bloody floor instead of just using it on the door was something that tripped me up for a while, too.
I think there should have been Mementos or something to hint at what you were supposed to do in these situations. When you fall into the utter darkness, a simple Memento saying "I should follow the sounds" or something would have gone a long way. It's not that it was that difficult to figure out, but when it's pitch black like that it's a little confusing; I would think most people would instantly think "oh, it's a bug!"
So really, the puzzles were fine, but I think there could have been more Mementos or more Notes that gave you direction as to how to solve them. One puzzle that was done well in that regard was the Lubricant-Pipe Lever Room one. I pick up the lubricant, I get a Memento telling me it's dry. I try to use it on the piston, and it says it won't work unless it's wet. Compare that scenario to the one with the Meat. The "Meat" item had no description, and there were no Mementos or hints to give you an idea of what to do with it. A simple Memento saying "I could use this as bait" would have given some direction to the player that they were supposed to set it on the blood. (As an aside, it would have been better to let the player use the Meat on the door, in my opinion. I know that I tried to use it on the door first, and when it said it didn't work, I moved on to other areas and didn't try to use it on the floor until much later)
Also, the ending. I got the ending where I saved Edward's children, but I wanted to see other two so I loaded my save. To my surprise, when I went to grab the Dynamite, it wasn't there! I was curious to see the other two possible endings.
Oh well.