I saw a number of shows there in the mid/late 90s. It was always a really odd space. The description of it as a black box with a Broadway designation is apt. As newintown already mentioned, the acoustics were famously terrible. It was only operational as a theater for about a decade--I believe the Stockard Channing/Larry Fishburne LION IN WINTER was the last show that played there--and I don't think its loss was as much of a tragedy as some people make it out to be.
"You travel alone because other people are only there to remind you how much that hook hurts that we all bit down on. Wait for that one day we can bite free and get back out there in space where we belong, sail back over water, over skies, into space, the hook finally out of our mouths and we wander back out there in space spawning to other planets never to return hurrah to earth and we'll look back and can't even see these lives here anymore. Only the taste of blood to remind us we ever existed. The earth is small. We're gone. We're dead. We're safe."
-John Guare, Landscape of the Body