Thanks for the suggestions.
We're working on a better homepage right now, but it's taking a while because we kinda (really) suck at design.
I agree that the click to reserve ux is bad. But I think it's also a thing you only need to learn once, then you'll know stuff is in the sidebar. Taking up the whole page is pretty strange because nothing else does that at the moment, but this might change. For now, we'll add some hints to direct you to the sidebar when you click on one of those available tiles.