Couldn't get past the 1st level. I'd love to play more but it seems like complete RNG to get past the first section, especially the turrets that fire continuously in a straight line which are near-impossible to get through without taking a hit (if there was some duck mechanic I feel this would be more excusable) and the platforms with inconsistent clipping (why do some platforms let you jump through them and others don't even though they look the same?).
Aesthetically, I really liked it sans the Aperture Science turret lifted directly into the game. Menu looks fantastic, and the music is pretty good.