Oh yes, Producers got loads of laughs. Because of was an advanced screening, a rep from the promotion polled the audience who loved it, liked it, thought it was ok, didn't like it, or hated it. Everyone loved it, and three people thought it was OK. No one hated it, didn't like it, or like it.
As for RENT, although the "Rent" song was thrilling, and I love the song, it just came from no where. There's the electric guitar intro, then Anthony Rapp starts to sing on the bicycle.
The songs that worked best were One Song Glory, Tango: Maureen, Life Support, Will I, Out Tonight, Over The Moon, La Vie Boheme, Take Me Or Leave Me, Without You, I'll Cover You (Reprise), and Your Eyes.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle