I was seated in the second row of the main floor (right behind the "on stage" seating) on the side of the theater where the audience entered. From where I was sitting, the mezzanine seats didn't look terribly partial view -- and I was told by a friend who sat in the seats that are directly above the stage area that he didn't miss anything -- but I wasn't sitting up there, so I really can't say.
As Hogan said, this play won't be for everyone. I found it fascinating and I wouldn't categorize the acting as amateur in any way. Revolori, Paul Iacono as Lola, and actor who played Darren (I don't have my playbill in front of me) were particularly strong.
There were no walkouts that I could discern at the Saturday matinee. One woman got up and left, but returned. (I'm assuming it was a trip to the bathroom). The play was not 2 hours and 20 minutes. At the performance I attended, the show started late (around 10 after) but the actual running time was only a little over 2 hours.
"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