I think How Lee, the Sesame Inn, and China Palace are the best Chinese places in Pgh. Lulu's is okay too... Mandarin Gourmet... ok most chinese places are better than Wai Wai.
Everyone loves Wai Wai....and i dont get it. Why? Why?
This is run of the mill, Panda express style chinese food. You're going to get greasy, gristly chicken and bland, soggy beef.
HOWEVER, on occasion I will order from Wai Wai because their vegetables are fantastic. Super fresh, steamed and tasty! You are good with any veggie dish. If you order a tofu dish it will be swimming in grease though.
Their food is also consistent, and sometimes you want crappy chinese food and you want the crappy chinese food you know.
It's not hte best chinese, I"m not even sure it's good chinese. it's just ok, and greasy.
Order from China Palace instead, they deliver to the same areas. Or How Lee.