If you are from NY, you understand how hard it is to find a *real* slice of pizza. I've gotta say, Libretto's is the closest I've found to real deal. I'll get the l"ate night, been drinking" experience out of the way first. It is literally a slice of heaven at 2 AM. However, if you must have Libretto's I'd advise leaving the bar a bit earlier than closing so you are not standing on a line out the door. Also, be warned that on weekends there are usually 1-2 police officers controlling the crowd (although I've never seen anything get out of hand). Maybe they get some free food?
I don't award 5 stars because the 2 times I've called for a regular dinner delivery, I've been disappointed. I want to clarify this by saying that I've only ordered a white pizza - not the usual pie. Both times it has been dry and overcooked. I wouldn't be so picky accept for the fact that they are kinda pricey for a full pizza. So of course, my expectations rise as the cost rises!
I would definitely recommend Libretto's. However, they need to prove that they can deliver a good dish before they get my top notch rating!