Rob M.
Yelp
This is a mediocre bagel spot with above average bagels. Let me explain.
It boils down (pun intended) to what you're looking for. Do you simply want a bagel and schmear? Do you have time to kill? If so, Zucker's will give you a four-star experience.
The bagels are fresh and authentic New York style. Zucker's stocks a diverse inventory of bagel types including whole wheats and (my fave) flats.
If you desire a more complex order, however, and are in anything resembling a hurry (which, this is midtown and you are in New York, so...probably), this will be a three-star experience or less.
First, the line shuffles at a torpid pace. If you stop by anywhere in the midtown lunch cycle, your wait will range anywhere from "too much" to "way too much" to "should I have just gone to the food cart?"
Second, the bagel sandwiches are really just average to below average. The BEC was fine, just very mediocre, which makes the wait entirely unworth your while. The Columbus (Turkey bacon, egg white, avocado, Swiss cheese) is just unfortunately dry and flavorless.
I can't comment on the coffee, as I've never indulged. But ultimately, if you want to maximize your visit, come at an off-hour and stick to a simple cream cheese bagel.