Stellavox amps ?

I'm wondering why I read so little about Stellavox PW-1 monoblock amps? I brought home a used pair 4 years ago just to try, and fell in love with them. My experience with other amps is limited to a Krell KAV-250i & a Bryston 4BST. I had been swapping components in my system for about 10 years (off & on) never being totally happy until I plugged in the PW-1's. I'm using them with Silverline Sonata II's & a Wadia 850 CD player. I've had the opportunity to listen to systems costing more than 10 times what I have invested in mine, and haven't found any reason to want to change anything. Why are these amps being ignored? Is it because they just aren't very impressive looking?