The vibe of Bakersfield is pretty laidback--it's a great place to get together with friends and chat over a drink and some tacos. I've been here a few times and the servers are always friendly and the food is always fantastic.
There is an upstairs and a downstairs portion. I've never actually been seated upstairs, but downstairs is relaxed and has its own full bar.
As a note, they do have gluten free options. I overheard a conversation with a waitress and another patron.