Wow, all the Panda Express hate! I don't eat anything there except orange chicken, fried rice and chow mein so I dunno. I think it's pretty tasty. All the Chinese restaurants I've been to pretty much taste the same to me anyway.
"Ethnic" cuisine in the United States is a more complicated subject than simply if it's good or not. A lot of what we get here is massively altered to fit to local ingredients and tastes. Talk to anyone ethnic Chinese from China, Taiwan, Singapore, Hong Kong, Malaysia, etc and of course they'll say that the majority of what's called "Chinese" here bears a faint resemblance to what they would consider Chinese. It's been homogenized to the point where everything would be considered too sweet, too salty, and lacking in local heat and/or spices. That's basically what Panda Express is. It's more American than Chinese. I don't find it unusual that ethnic Chinese people eat there any more than they'd visit a McDonald's or Denny's. Heck - ask someone from India what their impression of "Indian" restaurants is, and they'll probably say mostly northern Indian style and nothing like the regional foods familiar to them. But they'll still eat there. And possibly the most bizarre mix I remember was Indian-Chinese. Somehow I found myself at some place called "Inchin's Bamboo Garden" brought there by Indian coworkers. One was commenting to a Chinese coworker that they probably wouldn't recognize anything.
Chinese cuisine is far more than just making stuff in a large wok and keeping it warn on a steam tray. It's literally over a dozen regional cuisines. What most people think of here is more from the southern region of China since most of the early Chinese immigrants to the US came from the small Taishan region of Guangdong. There are lots of regional differences such as spiciness and a numbing sensation (the Sichuan peppercorn) from Sichuan cuisine. There's even more heat in Hunan food. We may think of rice being the staple of Chinese cuisine, but traditionally rice was difficult to transport and didn't grow well in the northern region, where wheat, noodles, and various flour-based foods were the staples. And Chinese cuisine even adapted well to new world ingredients such as chili peppers, corn, potatoes, sweet potatoes, squash, tomatoes, peanuts, etc.
I admit when I was younger I watched the Dukes of Hazzard. They had a bit character who was Chinese, and asked to borrow a torch to repair his wok. He was talking about using it to make "stir fried hog jowls". Strangely enough that's probably not that far off from the real history of Chinese immigrants to the US.
Sorry about the rant. It's not necessarily about anyone in particular posting to this topic. But I get a little passionate when talking about food I like.