Made it through 14 windows, got the hang of it a bit! Definitely some room for more upgrades, but the idea is cute and simple and it was executed well for what it was! The music was fine, but maybe a tad on the repetitive side, especially on a subsequent playthrough or making it far enough for it to restart.
I imagine I might've received some bad reviews from the owners of some of these windows as I did a barely passable job. :P