Smiling Banana Leaf is just average. They are not bad but I think there are a lot of much better thai restaurants around Pittsburgh. Because Pittsburgh has so many thai restaurants to choose from there's much more competition to be the best restaurant. It also makes me a little more picky when critiquing a restaurant because there are so many good ones to choose from around the city.
I started with the vegetarian spring rolls which I did not like at all. They were dry and tough and hardly any flavor. I also ordered the Tom Kha soup which was so good. And my entree was the mango tilapia which was decent but a tad too much sauce.
I don't regret eating there however I don't think I'll bother going back.