I agree with Crystal C., that the dim sum isn't the greatest I've ever had. In fact, I am not sure if the meal was so tasty that it was memorable. I do remember the "calamari" was not really calamari, like you would think. It was presented more like a sweet and sour pork (so calamari with LOTS of breading) without any sauce. As a result, the dish was dry and salty.
The sticky rice was good (hard to mess up), the chicken feet were okay (needed more five spice powder), and the shumai was alright. The noodles were good, and I can see why the cart ran out after the first round. The diners were an equal mix of Asians and Americans. I would've preferred to see more Asians eating (as I am used to in a Chinatown and gives an indication of authenticity), but I do realize we're in Phoenix where the Asian population is not like San Francisco or Houston.
The meal came to about $30 for two, including jasmine tea. The carts are loud because they are made out of metal and roll on tile. I am also not used to staff members shouting what they have in their cart, like a newspaper boy yelling "Extra! Extra!" Christmas music was playing after mid-January, so the atmosphere felt strange. Next time I visit the city, I probably will pass.