Kevin,
Up until 5 months ago I passed them on the way home and stopped there at least once a week. (Since my firm sent me to work in scenic downtown Brooklyn, I only hit them once or twice a month.) They are generally considered to have a great selection of specimens, but at a higher than average price. That said, would you prefer to buy your live stock from a shop that has a great selection and knowledgeable salespeople, or from a chain (or even LFS) that has a mediocre specimen selection and employs part-time high school students? "You gets what you pays for..."
In terms of specimen selection, I believe they have the best in the North East. I have been going there for a good 20 years now, and it never ceases to amaze me that, on a good 50% of my visits, I find a fish that I have never seen before... (Sorry --- I have no corresponding metrics on inverts.)
I was there last weekend, what are you looking for?
Regards,
Bob D.