[Callipygian]

D1 and D2 song were kind of boring to me, but it's mostly the choice of song, not the steps.
D3 was enjoyable, but honestly, not much could go wrong there, because the song just screams for the triplet 24th notes.
D4 was a straightforward js file, well-stepped. Felt very comfortable, sightread AAA'd.
D5, holy virgin Mary, Accelerator is HARD. It's long, it's fast, it has tricky patterns and transitions and is rhythmically challenging as well with all those syncopated drum beats. The tie-breaker song, on the other hand, wasn't nearly as hard. Lots of fun and some tricky jacks, but seriously, it barely deserves to be rated alongside Powerpoints, while Accelerator is an 82 or even 83.
D6: choof, so obnoxious bursts and rolls, no surprise
D7: Well-stepped and enjoyable to play. All patterns made sense to me.