This pizza is pretty good. While this is located in an airport and thus has airport prices, I have been enjoying my pizza. I have never been to a Humble Pie restaurant so I can't compare it to that. However here is my review of the food.
I purchased a 12 inch marguerita pizza and a 20 oz soda for 13 bucks, which is higher than normal but not a bad price for airport food. The pizza itself is decent. Not as great as CPK but decent and much better than the stuff you get from the large chains like Pizza Hut in my opinion. The crust is standard fare. It has flavor on it. The sauce on the other hand is a bit too herby and bitter for me. The cheese however is very good and tasted fresh. My only problem with the cheese is that it was not distributed evenly to the crust. It seemed as if someone just plopped cheese in the middle of the pie and hoped for the best. As far as service goes, the pizza arrived quickly despite there being a long line. The customer service was also good because the person who made my pizza cooked it too long and asked me if I wanted him to make a new one.
All things considered I would consider visiting this restaurant on your next layover. While I probably wouldn't go to this place outside of the airport. I must say I am impressed with this place for what it is. Normally I would give it 3 stars for the food alone if that's your deal.