Its the same as a modern day Theme Park, yeah. Biggest difference beyond the obvious is that you're able to construct the buildings around a basic shop box-stall allowing you to create strong themes for areas, and everything is freely placed and everything except rides can clip through other things, so no grid saying tree goes in that cell, wall goes in this cell etc, its a creative persons heaven really. The downside im finding is that having seen what others have done with it, anything i make feels completely inadequate
Even if you're not creative people upload the things they've build and you can place them in your park, or even modify them to suit your needs.
A few examples
http://steamcommunity.com/sharedfiles/filedetails/?id=796498709
https://www.youtube.com/watch?v=58tUZIE3QYQ
Happens to be the same person, but the video helps demonstrate it. Thats probably made up of around 1,000 smaller assets, like those seen in the YT video.
Its got all the management stuff, but IMO the thing that makes it stand out is the amount of creativity possible in it.