I consider myself to be a connoisseur of pad thai, and Nicky's did not disappoint. I especially liked that the peanuts were on the side, so I could decide how much to add. The outside patio was great for dinner and there are umbrellas in all of the tables for those venturing in the daylight. You can BYOB, and all of the servers were super nice without hovering too much.
It's located in the recently renovated Allegheny West neighborhood, and the only reason it doesn't get 5-stars is that it's a little out-of-the-way even for North Siders.