What 'Elements' -make a great level?

[BitBuster]

Some levels in CCLP3 were just outright over-powered in my opinion, which caused me to lose my motivation toward the end of the set. Same Game, Recurring Dream, Suspended Animation, Rotation, Vulcan, and Old Frog New Tricks (somewhat) were examples of this, where the difficulty was unnecessarily high and could have been a lot easier and thus more fun.

Well, I think that was one of the consequences of CCLP3 trying to appeal to the largest possible audience. You had simple little puzzles like Marooned sharing space with ridiculous brain teasers like Same Game. I doubt many people would love both levels equally...but the fact that they share space in the same levelset makes for quite the democratic playing experience.

Same Game was merely just a boring sokoban with a difficult catch IMO.

Really? I thought that the aesthetics of the level were far beyond 99% of sobokans. It was more than just Chip, blocks, and a bunch of walls. Same Game is one of those levels that's fun just to look at.

Levels like Waterslide and Diabolical were great relievers in the set, but I didn't really like Waterslide TBH.

I liked Waterslide, but I'd agree that were better "relievers" in CCLP3.