I used the Helix for several years before coming over to the Kemper in August and the "snapshots" do resolve the issues with the audible gap when switching. I have setup patches with up to 8 snapshot in a preset and had as many as 4 amps in the preset too. While you will not be able to select any 5 amps like in the Kemper without running out of DSP, you can do quite a bit. I enjoyed the flexibility a great deal when I had the Helix and came to the Kemper just for the improved tones and unlimited ability to get any amp and not wait for Line 6 to make it. Of the short comings of the Helix, switching amps/effects and such is no longer on of them.
It was a deal breaker for me, which is why I got rid of mine, and why my interest in the Quad Cortex is minimal. Snapshots drove me mad.