I only come here for their lunch specials during my lunch break as it is close to my office. Decent price, decent portion, great selection. It's not going to be the best food you've ever had, but the reasonable prices and quick turn around makes this an attractive option for a quick lunch. You are basically getting Chinese fast food here.
I'm not an expert on Hakka food but most of the items seem pretty Cantonese to me. Anyways it's the kind of place I wouldn't mind going for if I happened to be in the area but it's certainly not a place to deliberately visit.