Disappointing. It looks like the real deal with Chinese clientele and a beer gardenish setup for hot pot with infrared burners at each table. I found the hot pot portion of the menu a notch or two below that of Bamboo Buffet of Falls Church. The portions are stingy and arbitrary divided into lamb, beef or seafood. At Bamboo Buffet you have access to everything, unlimited, for roughly the same price. (Not sure BB serves lamb. BB meat is fresh or at least thawed out, not frozen like Bob's.) The sampling of ingredients looked like a joke. Huge pieces of uncut white bulk cabbage like what'd you'd see in food service at a bad uni cafeteria. No watercress, no bamboo shoots? I had great company and was full from the night before, so the food was kind of an afterthought. I would be sorely disappointed otherwise.
If you live in VA, take a pass on Bob's for hot pot and go to BB.
Btw, I got the Shabu Shabu, by accident, and not the Mongolian. The Shabu broth is ma-la mildly spicy, didn't sample the Mongolian broth. If you want Mongolian, make sure to specify it.