I went to Dean Sin World over the weekend. It was for a late lunch, and the place wasn't crowded at all. This was my second visit (the first was in summer of 2012), and I liked it just as much as last time.
We all really liked the wontons with chili. There was a ton of garlic in the sauce, and the wontons were firm with wrappers that weren't too soft. The wontons were pork-filled.
Fish dumplings were also very nice, with a medium-thickness wrapper and a mild filling. Crab and pork xiao long bao were also excellent. Like last time, some of them exploded a bit before we could eat them, but most were intact.
Shumai were the most interesting thing we ordered. They were essentially a dumpling shaped like a xiao long bao, with a similar wrapper, but they were filled w/ sticky rice. It tasted like what you'd normally find wrapped in a lotus leaf, but instead, it was steamed inside a dumpling. I attached a picture. I had never heard of this before.
Shrimp wontons in the picture on the wall look very different from the ones we received. They came in a wonton soup, and the broth was light and flavored w/ seaweed. Nice end to the meal.
We also tried the baked pastries: one stuffed w/ meat and another stuffed with date. I disliked both of these, mainly because of the fillings and the ultra-greasy and dense pastry.
Prices are very cheap, proprietor was helpful and friendly (though didn't speak a ton of English). I'd definitely return for dumplings and xiao long bao, and it's nice that there wasn't a wait.