So I took a break from my holiday shopping and dropped into the Yet Wah on Clement St. to revisit the potstickers to see if my 20+ year old memory holds up. I got an order of three from the dim sum menu, plus a couple of other dim sum dishes.
The verdict: at least as good as I remember. In particular, not only was the filling juicy, with a perfect balance of garlic, ginger, scallion, and pork, but the wrapper was exemplary: thin but strong enough not to fall apart, and fried to a delicate golden crisp on one side.
The quality of the wrappers really stood out on the other dishes I had as well. Both were of the glutinous style (Teochow dumpling and black sesame "sludge" dumplings), and in both the wrapper just melted in the mouth without the slightest hint of gumminess or rubberiness. I also had a dim sum item I'd never had before: pork belly in spicy sauce. The belly was julienned with the rind on which gave it a chewy texture almost like pig's ears. Tossed in a slightly spicy sesame sauce and served cold. Quite yummy.
Based on these dishes I'd strongly recommend Yet Wah for a "nice" dim sum experience in that area.