Overall, I have been really happy with the switch over to using software based effects for looping and other effects.  Everything worked great on our mini-tour last weekend.  The main problem is with the Guitar Rig Kontrol pedal.  It clicks.  Loudly.  It uses the silver button style switches.  I have had these on other pedals where the click was not as noticeable. Unfortunately the switches on the Guitar Rig foot control make very loud click when they engage.  When using this louder songs it's not a problem.  For softer songs though, it is very distracting. An audience member even mentioned it after our gig in Gulfport.  I have come up with a temporary workaround using the Boss FS-5u footswitch as an external pedal option for controlling the start of loops.  I think I will give the Behringer FCB-1010 pedal a try.  It works via midi and I have read several good reviews in regards to using it with the Guitar Rig software.