The advantage is fewer competing networks and more non-overlapping channels.
Disadvantage, at least until manufacturers stop cheaping out on power amps is poorer range.
Has anyone stopped cheaping out on power amps or are we well into high end expensive business solutions only, if even that?
I'm just about ready to make a move and I'm not sure whether to even bother buying dual band ready products given the above.
Ideally, an "optimized" 5Ghz wireless N situation sounds like the way to go but it looks/sounds like that just doesn't exist yet.