The animation overall is really good. An animation this length, of this polished quality, is an impressive feat in itself for an independent project. The voice acting is excellent. The character designs are cute and cartoony. The lip sync is well done. The facial expressions and body language are nice and emotive. The slapstick is well executed. The backgrounds have pleasing color palettes, an appealing art style, are nicely detailed without being overly cluttered, and an appropriate atmosphere.
The only thing I don't like about the animation is the shading. I personally think the characters would look better without the rim lighting. Maybe it would look better cel shaded. The soft shading doesn't really suit the flat 2D stylized designs of the characters. It sometimes is inconsistent with the direction of the light source. And the when the lighting bleeds over the black outline, it looks messy and makes the characters feel detached from their environment.
The biggest detriment to this episode is the writing and I'll try to be as constructive as I can instead of just saying it's bad or boring.
The main characters and also the clubgoers who antagonize them have really unlikable and uninteresting one-dimensional personalities with few redeeming traits. The episode is too long and very tropey and predictable.
The way the story is structured makes me feel like as the viewer I'm meant to relate to and sympathize with the quirky socially awkward losers. Maybe someone who is even more antisocial than I am would find these characters to be relatable and funny but I just find it overall uncomfortable to watch.