Read the reviews on Yelp while I was visiting Phoenix.  I am a Doo-Nut fiend, so was looking for a place.  Lamar's was middle of the road.  I am a classic glazed donut kind of guy and I love them even more when they are hot and fresh.  I think had I been there when the donuts were hot and fresh I would've enjoyed them more.  Yet, it wasn't bad.