If you have a hankering for pure vegetarian food in Phoenix, then this is probably the default restaurant. We are all veg in our house, and my son's a picky eater and also a homebody, but he loves to come have their veggie burger and fries. While I can't name all the dishes I've had there, I can certainly vouch for the BBQ chicken sandwich and burger, and I've only had one dish there that didn't excite me, but that's a pretty good track record considering the number of times we've eaten here.
Love the atmosphere here and enjoy occasionally sitting with people we don't know at the bigger tables. As others have said, there is very little parking. We've always been lucky and found a space, but if you can bike here, then I highly recommend doing so (so there is more parking for me).