The amp turned up.
Besides the impeccable service, the packaging is first rate also. The amp is wrapped in plastic and suspended in the box via plastic bricks so it's well out of harms way from heavy handed delivery people, then on top of this it's also double boxed.
On first looks the amp is very well constructed, with excellent connections, and does look better in the flesh than the photos portray. I wouldn't say it's a statement piece but it's not ugly either, after all it's a power amp and doesn't need to be on parade if you don't want it to be. I've seen some amps that I would want to hide; this one is proudly on display in my system.
First thing I checked when powering the amp up was the noise it produced, I've a dedicated room and the noise floor is very low, I hate with a passion, AC Hum, and transformer buzz, this amp is as quiet as a church mouse, wow I was so happy.
So taking on board others suggestions that not to be to critical in the first few hundred hours, I had to check the 3D sound stage, since I've read some conflicting reports with regards to some digital amps. I've got some test discs that I use when auditioning gear, or when going to GTG's since its music I'm very familiar with so it gives me some form of benchmark. Fist up is Chant - Fourplay, besides other great things this track has to offer at the start there is a sound like sprinkles, there are two lots of them the first usually comes out into the room halfway, and the second lot comes up to the listener. Next up Private Universe - Crowded House, at the start of this is traffic noise and some voices, the sounds radiate out and around the listener, the third track I use is Montego Bay Spleen - St. Germain, this has a truly three dimensional sound stage that wraps right around the listener. One of the beauties of these three tracks is the 3D sound stage I listen for is right at the start so very easy to check and move onto the next track.
I'm not sure if the soundstage improves with hours up but I found in all three cases the soundstage was a bit shallower than the other A/B amps that I've used in my room, these being Elektra Reference, Elektra Theatre, and SGR plate amps. It's not far behind but for me a noticeable difference only because I was looking for it.
At the moment the Sonos is running so the amp is being continually run to clock up some hours, on the weekend I'll give it a workout in the listening department.