I've been a customer of Pong Pong for a long long time. (Sorry had to do it!)
For quick Chinese food delivered hot to your door, they generally do well. It's usually 30 minutes or less. I would go 4 stars if I were writing this review a number of years ago, but they seem to have become more average over the past few years. Tonight's order consisted of House fried rice, Mongolian beef (add broccoli) and Pot stickers. The combo meals simply include a fried crab puff and egg roll. Egg rolls are good as long as you don't get greasy ones. Crab puffs are always good. The pot stickers this evening were not very good, doughy, chewy and the filling was very bland. Otherwise the Fried rice and Mongolian beef were quite good.
All in all, they are one of the better delivery options around my neighborhood and I'll continue to patronize the place. The people that own/run it are nice. I suspect they may be a little challenged by the economy, which might explain why the quality has slipped over the past few years.