[benjaminlhaas]

I agree with this, but I'd simplify even further: Get two friends to play the role of bartender, buy a few cases of beer, and do this at home. Invite 10-15 friends over and ask them use your app. Watch them use it, and ask lots of questions afterward. Make sure you have a small set of specific questions you want to see answered by your user study.

[busterarm]

At the stage it sounds that they're at, that sounds like much better advice, honestly. Thanks!