I have an AV3000 which I've been using DAILY for nearly 9 years.  With a few minor details, it is basically an identical unit to the AV3100.  I have multiple devices with macros built for each scenario.  It works like a hammer.  It doesn't have quite the "Ohh-Ahh" factor that it did in 2002, but I believe the longevity speaks for itself.  When it finally gives up the ghost, I'll be looking for another 3000 to replace it.