I saw it through, but I can agree that I found it pretty frustrating. The puzzles weren't always easy to execute even when I knew the solution and quickly got repetitive (you're really going to walk under a mind controlling parasite again?) and the jumping always felt very off. Specifically, there were lots of moments where I was expected to be able to jump over to the other side of a gap only to realize that it kept wanting me to not quite make it and climb up the ledge, and that always felt very unsatisfying... it might have been intentional, though.
I can totally see why people were into it at the time, but having played it for the first time a year ago, it already felt very dated. I really hope this isn't so similar that I don't enjoy it.