I know! I had an XL+ and now the III and it's been rock solid.My backup is a simple Tech 21 preamp pedal, with cab modeling.
If my rig fails it will take 1 or 2 minutes to switch.
Is the sound comparable? Of course not.
Will it let me finish the gig? Sure.
Will the audience notice? Many won’t.
P.S. My Axe-Fx has never failed me, since 2009.
I have my own backup strategies like everybody else here, but that's not what I was talking/wanted to talk about.
I simply wanted to take the matters to into my own hands and do something, if that's what's happening.