Fun little hole in the wall bar in Old Town Scottsdale right off of the main drag. Cheap drinks for the area, and the atmosphere is super laid back. It seems to have a mixed crowd (some college age kids mixed in with some old timers), but it definitely does not have that pretentious Scottsdale vibe that one will find all to easily in the same area.
There is a ping pong table outside as well as some semi-outdoor covered seating (no A/C misters though).
I've been here twice and both times used Patti's as a stop between establishments. Even though I didn't spend a ton of time inside, I felt comfortable in this place. It definitely has a "come as you are" vibe to it.
If you are looking for a chill place to go with friends and rock your not so fancy clothes, go to Patti's. It's a cool little place.