COGS keeps things simple and focused. The visuals aren't flashy, but they clearly communicate everything you need. The lo-fi soundtrack is perfectly chill — exactly what you want for a puzzle game you might spend a while on.
The level design is strong throughout, and let's be real: creating 150 levels for a game jam is an impressive feat on its own.
My only quality-of-life wishes are hotkeys for selecting different cog sizes and an undo button for when you place something wrong. Small additions, but they'd make the experience feel much smoother.
Overall, a very well executed puzzle game.