Every time I go home to Phoenix, Bosa is the one place I HAVE to go to. It's been around forever but I have to admit I didn't first try it until a few years ago. I was doing a rotation with the fire department and after fighting a fire they stopped there for donuts on the way to the station... life changing.
I promptly introduced my family to it and now it has become a tradition to go there with my family and the dog when we come home. My favorites are the classics like the old fashioned cake donuts. They also have great coffees and iced beverages. You cannot beat the price.
And don't worry.. you won't miss it driving past... it smells delicious even from the street!!