It's challenging to review this because it switches gameplay styles so completely, repeatedly, that it feels like several levels in one. The starting area would indeed be a dubious match for CTF, but it's fine here (though the rest of the level never manages to make Townhouse look quite so good as DanX did). Some plausible enemies, a pretty cool horizontal spring segment.
Then the level turns into trigger crate hell for much too long. Barely-visible walls block arbitrary sections of the level, and you must find trigger crates (sometimes in secret areas) and smash them in an unclear, unguided order before you can finally progress. And then you have to do that same thing again, but worse.
Then the level gets more experimental, with an airboard collectathon, some basic level design, a kind of interesting float-up area, a mandatory secret area, and an area I actually rather like, where you're on an airboard again but this time you're collecting gems as the wind moves you along. There's some confusing eyecandy in this section, and it would be nice if the camera weren't so centered on the player, but otherwise it feels fresh and fun.
Next up is a vine platforming area, and I'm a sucker for vines, although it's kind of messed up by the fact that Spaz can skip through parts of it with his double jump. Also the trigger crate hunting returns for no real reason, and there are a lot of invisible spikes.
The rest of the level is a bit cramped but notable mostly for introducing ice tiles (complete with the Slide event, I think) to Townhouse. It's okay but doesn't really play to the tileset's strengths.
Enemy placement's generally fine, nothing too out-of-keeping with the environment. There doesn't seem to be any ammo at all, though… it's generally thought to be good to give the player strategic options, not to mention it's just fun to be able to switch guns. A missed opportunity. Checkpoints feel about right, though inherently limited because of the trigger crates.
I like some parts of this level. I dislike others. Hard to get more N/A than that.