Way too obtuse. 90% of the puzzles completely hinge on whether or not you notice a very easy-to-miss detail. For instance, there's a section where the solutions to the panels can only be found by using the glare from the Sun or another light source. It's pretty cool, and once you figure out that that's what you're supposed to do, the puzzles in that section are really fun, but the game does virtually nothing to hint to you that you're supposed to be looking for these light glares. I only found out because I looked up a guide. This is the kind of puzzle game where I've used a guide for a pretty good chunk of the puzzles so far, and I don't feel bad about it at all. Almost every time I've looked up a guide for any given section in this game, I've looked at the solution, and asked aloud "how the fuck was I supposed to figure that out?". That's my experience thus far. The puzzles are mostly pretty fun, just really poorly conveyed. This is an incredibly frustrating game.