This is what i wrote a few ages ago under my completion vid:

"This is the worst demon i've ever played/completed. At the moment completing, i was going for gold GDDP rank so i have to beat this and 8 more gold demons. Enjoyment: 1 / 10 - I'll explain: First of all, level is unbalanced. The second half is way harder than first. Spider at 11-16% is annoying but once you understand how to pass this you'll do it almost every attempt, the only thing is shitty transition between spider and ship at 16%. 26-36% is completely FREE, however, bad things starts from wave at 36%: the entire wave part isnt that hard, its about STUPID transition to mini wave at 42%. Spider at 53% is awful. This spider part supposed to be clicksync or something like that BUT first two clicks are OFF sync. Clicks at 62% are just shit its about game not the level i guess, but the next part is... Transition part at 63% is stupid because creator didnt placed J blocks so you could hold your mouse, to understand how bad it is you need to play it from zero.. Ship at 69% is hard, not a bad thing but unbalanced compared to first half. Finally, the last part - wave at 90%. IDK why would you create such a part if you want to make a good level, seriously. Your trail is disappearing every second, patterns are garbage and last percentages are just... bullshit. I don't recommend this level to anyone, until youre going for gold+ rank at GDDP."