I was never a big fan of McBusted, the supergroup forged between Busted and McFly. I thought both were fine on their own and and didn't really need to pool resources.
I can't remember a single song on their joint effort album, and nobody really seems to care for them when they are played here.
The things that get the biggest reaction are the songs produced seperately, and even then it seems weird that members from the other group are singing them.
Overall, this was an odd experiment that I don't think really worked. Members from both bands have said as much.
It's a fine concert film though.