Hi,
Just a point on reliability : this will be far more easier to repair an amp than the Kemper (PS: I have a Kemper and I love it, and never switch it for an amp). But the kemper (just like the Axe) is just a bunch of electronic boards full of components impossible to find in several years.
If it is possible to repair an old 70's amp, because it is basically some pots, for passives (capacitor, resistors and inductors), and, of course, tubes. Things you can easily find 40 years after. It will never the case for a stuff like a kemper/axe/pod, ... (believe me, i work as an electronic engineer, and components obsolecence is a pain in the @55 )! So do not expect to keep your kemper/axe as many time as a true amp. Except this consideration, go for a Kemper