This bar is weird.
The drinks are strong, the service is pretty fast, in general the layout is good. The artists they have here are usually incredibly unique, and sometimes they're good, too. I never had the pizza but I hear it's decent.
The big thing about this place is the parties. They're worth the high entry cost. Just make sure you always try to buy a ticket before you go if you plan on getting in. They can sell out.
What I think is 5-star worthy about this place is that it is not only completely unique, it creates a new vibe, does it well, and there is really nothing else like it that I have ever seen. It's like Tequila Cowboy for hipsters. I think Spirit is one of the only places in Pittsburgh that I would tell someone to come from NYC or LA and make sure they saw it.