I got it 6 and a half hours ago, and I've played it for 5.9 total hours according to steam :D
I made a really cool park though. I had to stop working on it because it started lagging when I tried to ride on the rides, and that was most of the fun.

I also made a labeled version so you know what everything is. The coasters with yellow words on it are pre-built and I just stuck them in there because they looked fun to ride. (I meant to paint the "Yes, this is still part of it" white, but Paint.net was being weird.)

Best $30 I've ever spent on a game.