I've been reading over here on the forum for a long moment now and here's my current decision I made: I'm not gonna buy the Kemper Amp... yet.
And before anyone is accusing me of trolling or so, here are my personal reasons why:
1-) I will need more time to save for the Axe-FX (and other stuff)... so maybe by the time to be ready, the KPA might receive some updates that will change my point of view.
2-) As of today, the KPA is not available in Rack format, which is a definitely "no no" in my situation.
3-) The KPA doesn't look reliable enough to me for Live and Touring. Even without talking about the Rack, the booting time by itself is killing everything for me and would make me use the KPA in Studio only while I'm looking for a tools for both Studio & Stage.
4-) Quality over Quantity... It looks like there's thousands of profiles, but I'd actually prefer to have less quantity and just have quality. I don't want to spend hours and hours to find the good sound.
5-) From everything I read, including manual and user guides, the workflow looks also hecky, not super intuitive...
6-) If the "Profiling" is apparently really well done, apparently the rest (OS) aren't and there's missing, bugs, etc... I completely understand it could happen to any new product, but I need something 110% rock solid, so I prefer to wait for the KPA to become better.
7-) There's not as much Stomps/Effects as other solutions (even in comparison of a Pod HD Pro/M13) and I'm not even quite sure from everything I read so far that CK even want the KPA to become the holy "all-in-one" grail and it looks like he would prefer to stay focus on the Profiling "Only". I completely understand this choice and it would be then even perfect if it had more Audio-FX Loops then (like the G-System), to integrate it with other FX Rack... There's the 4CM, but it's not enough. The Axe-FX does have the same issue, but looks to integrate more effects...
8-) I'd prefer the KPA to include a kind of Loadbox to profile the Amp only and directly... be able to use it with a real Cab or a Cab+Mic simulation, depending your choice and situation (or even both... Cab on stage and Cab+Mic Simulation for Front PAs or even for Recording). I might use a Torpedo Live for that instead...
9-) I'd love to be able to run two Rig (Signal Chain) together... for Rig X/Y (or A/B), to switch between Rig or even having stereo Rig. I often use the G-System with dual out on a Mesa Mark V and a Fender Twin and the result is just great and very flexible. You can easily use one, the other, both... change canal on just one, etc... With a good Stomps Audio Loops Combination that's all I need. I actually even use it as a "One Preset Setup" only... turning on/off, switching canal, selecting Rig, etc... but being on the same configuration from start to end and not switching from presets to presets (which is good when you know what you will play and have a setlist... but not good at all when you know what you need after the first bar the drummer already started to play).
10-) Being not satisfied by anything I saw in Foot Controller so far (from both Fractal Audio, Kemper, Line 6, etc...), I might go for a better solution with Gizmo Effects Audio-FX Looper and/or SSL X-Patch, associated to a LF+ or Mastermind GT foot controller... (or maybe even my own foot controller if I can't get exactly what I want, the G-System is great but it needs just few more switches and loops, so I might just get a G-Major 2 instead).
There's other tiny stuff such Audio over USB (TI style for Editing, Management AND Audio Recording/ReAmping, etc...), etc... but here are my 10 main reasons why I might just wait for a better version of the Kemper Amp.
It's not an easy decision because it's been over a year I was waiting for, I was very excited to see it at MusikMesse, even more excited to read all of your post over here, but I don't like to buy gear that don't match my needs (even if they do have great hype). It's for the same reason I haven't buy the Axe-FX 1 (or Ultra), because there was some stuff I didn't like about...
NOTE: This is MY reasons and mine only, they might not apply to yours and it even doesn't mean that the KPA is not good at all... I actually think it's really good and that's why I still considering it, reading all post, the manual, listening all demos, watching all videos, etc... If I'd think it's not good at all, I wouldn't spend so much time about it, nor even writing this post. I just hope Kemper Team will read it and they might come with an update or upgrade that will delete all of my 10 points and make me the most happier man on earth... In the end, that's all I'm hoping for 
My 10 cents,
Phil
Seriously if you want quality and don't need much diversity and if you don't like to tweak just buy a good tube amp! You need to be a power user, or at least a good tweaker, to get the best out of a digital device and especialy an AFX IMHO, I owned an AFX standard and never got to tweak that much than with this device. Just my 2 cents. 
