I have avoided trying this place for three years now and that has been three years too long. Panda's Den is actually a charming little Chinese place if you can believe it! What made me avoid it to begin with was the area it is located in. That said, I am learning that despite the area being a bit old and rough in places, East Charlotte has lots of little culinary gems if you just give it a chance.
Panda's Den itself is very clean inside and prompt with their service. The people dining there seemed normal when I was there ( a real plus!) and the wait staff was suited for the venue. The dining area is simple and hints at welcoming atmosphere. I would bring my family here if we wanted a quick bite.
The menu is probably like you would expect: lo main, general Tao, etc.. I actually think the food was great! I would put it in the top five Chinese places in Charlotte - that I have been to.
To enjoy this place, I would not go in expecting grandeur and opulence or even an interesting atmosphere. If you are food minded, you are half way there but don't get hung up thinking that they will cook the same style of Chinese food you loved in college. Just enjoy it for what it is: a big step up from a decent "to go" Chinese place.