The new AMPLIFi amps seem great for practice or studio use, but I can't see them being used to play live very easily. With a limit of only 4 presets stored in the amp at any time it seems like playing live with it would be difficult and nerve racking. The iOS App is great, but there is some latency when using it to switch presets so I don't think it could be used very easily on stage.
I'm surprised that the AMPLIFi amps don't have preset banks like other Line 6 amps. It would be nice if you could store at least 9 banks with 4 presets each to make using the amp live easier.
Maybe in AMPLFIi2.