Re: NAD ! !
I had a Vypyr 75 and Sanpera I when they first came out. Great tone and many good effects. I can only imagine that the 60, being a tube power amp sounds at least as good, or better. I bought mine with the main purpose of using it live. That didn't work out well. Switching patches on-the-fly was difficult with the Sanpera due to the closeness of the buttons and I would trigger unwanted changes (trying to sing lead and changing from rhythm to lead guitar in a 3 pc. band where breaks in continuity weren't acceptable). Also, on the earlier models, sometimes during a switch, it would lock up, much like an old windows operating system. That required shutting down and re-powering to clear.
It had to go...just too cumbersome and problematic for mys use on gigs. Hope the newer versions' software has corrected the lock-ups, but still, I know I'd struggle big time with the Sanpera I let alone the II. But as I stated at the beginning, some great tones to be had. Wish you the best with it.