Any experience with Unison Research?

I have a set of tubes (12AU7) by Unison Research (unisonresearch.com) that I use for back up. They don't sound like anything special in my system (CJ PV10A, BK ST1200, Alon 1), but does anyone else have any opinions on this manufacturer (tubes or gear)? Their amps/preamps "look" great, anyway.

Thanks,

Brad Day
Atlanta, GA