The first time I ventured to the wonder that is Glass, my girls and I had been partying at Marquee until it turned into a zoo when Paris & Nicky Hilton arrived and sat in VIP (speaking of which, isn't the point of VIP to be tucked into a conspicuous, closed off area in which the "unworthy" will not be allowed pass?). We promptly left and randomly walked into Glass and the rest is history. I don't even go to Marquee anymore b/c of the masses of silly, pretentious people. I can no longer count the amount of times that I have been to Glass and each time I have gone, I kid you not, I have had some ridiculous night of debauchery not only w/ my friends, but w/ random people I have met there. If you're looking for a place w/ yummy cocktails, friendly staff, good looking people (i.e. men, although the ladies represent as well), and tunes that make everyone get out of their seats and gyrate on the dancefloor... well then, this is your place!
Pros: Sinful dancing, good music, good people, outside lounge area (excellent if you're a smoker, esp in the summer)
Cons: When it's packed, it's PACKED