Note that Yormark is promising shows, fights, hoops, and--as of April--a guarantee that the Nets will be in Brooklyn for opening night 2012.
(That's more likely than his past promises, given the need to fulfill sponsorship contracts. Still, he did once say he was "convinced" of a 2011 opening. So we'll keep watching for after-hours work.)
Will Barclays be "the best building in the country"? Well, I suspect it will get a lot of kudos early on. That may depend, however, on ensuring that such reporters get ushered into the building without getting confused by having to walk through a residential neighborhood from the surface parking lot.