I owned a BAT VK500 for about a year. It was actually a
converted VK1000. I loved the amp. Smooth,dynamic with
great control. Very organic sounding. I eventually traded
in the amp for a DNA 500 because the BAT just pumped out
too much heat. As far as service is concerned, I have never
heard anything but stellar comments about them. My personal
experience was no different.
cmach