Sun Penang offers great lunch options if you go between hours of 11-3pm. You can practically eat lunch for less than 10 bucks and that's including soup/egg roll and a main entree. It's not so great during dinner hours. I ordered the mango chicken from the dinner menu and it was not so impressive. It came with a whole mango cut into halves and stuffed with chicken garnished with lettuce, peppers, and carrots (also an umbrella that you find in your drinks). The dish was extremely sweet and lacked any real flavor. I guessed I should have expected this outcome since it is called "mango chicken".
I tend to come for the dim sum since this is the only place that I know of which has dim sum. The dim sum menu is very limited and the "shiu mei" and shrimp balls were pretty small.
Anyway, the reason for my 3 stars is that the place usually only has one waiter or waitress for the entire place so the food comes out very slow. And also, I feel the food is altered to the American taste with large amounts of sugar added and the dim sum portions are small. There's definitely better Malaysian/Chinese/Dim sum elsewhere....