New Haven "apizza(?)" in Washington, DC?

There's a new pizza place in Washington, DC, "Pete's New Haven Style Apizza," which bills itself as the best Pizza in DC.  http://petesapizza.com/  After trying it, I may have to agree. Its thin, crisp crust stood up well under the high-quality, well-proportioned toppings. It was expensive, though, costing $22 for a large, one topping pie. I would be interested in the opinion of anyone who is familiar with New Haven pizza as to whether Pete's is the real deal or not. And what's with the "Apizza?" Is that just a New Haven thing, or does it have some other significance? Pete's is at 14th and Irving Streets, NW, just a few steps from the Columbia Heights Metro stop on the Green Line (and right next to a Five Guys).