Reading the reviews there seems to be some mixed opinions about this place. The weekday special is now $2.80 which I think is still cheaper than most other dim sum places around. I can appreciate that the service isn't great, but that's usually more the norm with chinese restaurants than the exception.
I've been here a few times so far and for the most part I find the quality of the food to be above average compared to other places in chinatown. Things taste fresh and not like it's been sitting around all day. That is also the benefit of ordering dim sum off a menu vs the cart although you do not get that traditional experience.
I would recommend this place if you're in chinatown and especially if you're coming 9-4 on a weekday!