My partner and I recently visited Joy Yee's at their new location in Chinatown (they just moved a few doors down). The waiter was friendly and helpful, especially in letting us know what was vegan / vegetarian or not. The place was PACKED and noisy--probably more of a family / friends place then a date restaurant.
We were most impressed by the Taro Milk Freeze. It had a unique, mellow flavor, and a rich, smoothie-like texture. We also ordered two dishes--Buddha's Delight and Japanese Tofu with Two Mushrooms. The Buddha's Delight was a mixed vegetable / fried tofu stir-fry; good, but not extraordinary. The Japanese Tofu dish, however, was a completely new experience for us! The tofu in this dish was silken, but deep-fried--it melted in our mouths. One of the two types of mushrooms used (Shimeji, as I later found out) was like a group of rice noodles joined together at the end, but chewier. If you've never had these kinds of foods, you gotta try em out now! Finally, we shared Vietnamese Spring Rolls; these were also fine, filling, and came in nice, big portions with a bunch of hoisin sauce.
From a vegan / vegetarian perspective, Joy Yee's is worth going to at least once, if for only these dishes.