Serious Eats seems to think so, and so do a bunch of Yelpers. I went to Bread Talk, but did not try the egg tarts since I typically don't spend my limited quota of cholesterol on egg tarts (unless it's at Golden Gate Bakery in San Francisco). But I did try some of the other items at Bread Talk, and it was definitely good stuff, so the high praise for their egg tarts may be warranted. Also their egg tarts are priced well below the Chinatown average, to boot. Bread Talk is at 47 Catherine Street, which if I recall correctly almost gets you to Monroe St.
47 Catherine St, New York, NY 10002