Gryphon Diablo 120?

My current integrated amp is a Yamaha AS2100. I've been planning an upgrade. I have done a lot of research and I'm interested in the Gryphon Diablo 120 integrated amp, I've found a pre owned model and I'm considering purchasing it. My speakers are Sonus Faber Cremona M. I also have 2 KEF R400B sub woofers conected to the Yamaha. From the description of the Gryphon sound, I think it will work. Does anyone have real life experience with this amp. Any thoughts on how it will work with the SF speakers.