Fresh, Funny & Friendly. That sums up Andy's. The food is really fresh. No surprise given his location inside Wholey's and access to the their best fish every day. No pre-made sushi at Andy's, he make everything fresh, right in front of your eyes.
Andy himself is a funny guy, chatting up customers while whipping out some of the best sushi I've had in my life. (I travel a lot and have sushi eaten in many cities and countries around the globe.) My first time in he brazenly told me that one I ate his sushi, I wouldn't be able to eat anywhere else. He was almost right - I haven't gone anywhere else in Pittsburgh since but must admit to trying to fulfill my sushi fix in other cities.
Lastly, Andy's is a friendly place. He often gives samples to customers waiting to order. And his customers are good, loyal, Midwesterners, willing to strike up a conversation with anybody standing next to them in line. A good thing if you have to wait 10-20 minutes at lunch to get your order. The friendly vibe almost makes you forget you've been waiting.
Andy is doing the 'Burgh proud. He has big selection of nagiri, maki and sashimi - all at great prices. You can take his food upstairs in Wholey's to eat or take it back to your office/house/shade tree to enjoy. Too bad he closes shop at 5PM.