Not all memory levels suffer from "memory level syndrome" as I like to call it, but this one definitely does, and it's not by a little bit.

When I say "memory level syndrome", I mean that to make memory more difficult, by necessity you have to make things look the same throughout, and that can be pretty boring. Repetition, mazes, etc. You have to be really careful about using these, and this level just wasn't. That's why for me the best parts are the start and the dark section. You're still given something to look at that isn't just a generic blob in the mind.