Vista Audio Spark

I wanted to get some discussion going about the Vista Audio Spark amplifier.

Anyone have some experience with this amp and the speakers it will power? Specs say 20Wpc so I imagine it drives efficient speakers. Was wondering if anyone has used it in a desktop setting with a less eff speakers, say around 85dB sensitivity?

How was the sound?

I’ve heard good things about it on other forums/content so I wanted to see if it lives up to the hype (this forum hasn’t lead me wrong yet!).