Masterpiece sounds way better than I expected. And Hung Up is okay (yes, better than on Sticky & Sweet). I haven't watched all clips, mostly just small parts just to be sure it's worth it. And it is.
Some review said that the first section is actually the weakest (haven't watched the opening, only seen a few pictures) because the first three songs were no actual hits and it takes quite a while until the crowd would go crazy or whatever.
Personally the only thing I don't really enjoy is Nicki Minaj's backdrop (wish they had cut out her part but knew it was not going to happen) but it's not that important.
Now I'm trying to avoid the obvious highlights.