The Hole in the Rock Restaurant really is a hole in the wall. We've been here a couple times for brunch and it's emptier than the Pakistani restaurant on Seinfeld. Decor can be described as mid-century, Mad Men (I never watched it so I can't agree or disagree).
The food is a great value for the cost. Staff is friendly, free wi-fi and they have yelp check in discounts.
The Hole in the Rock is part of the Magnuson Hotel Papago inn