Have you tried Red Wine?

The Signature 30 arrived at my front door 3 days ago and it is as Dmason says. Fast and gentle sounding. Emphatic about presentation and as articulate as the real thing. Every sound is conveyed as a distinct entity. I can't really support the SET similarity claim due to insufficient personal experience with those type of amps. But I can second the recommendation. This little bugger is sweet and user friendly beyond anything I've ever seen or heard. There is supposed to be a very significant improvement after you reach the 100 hour mark. I look forward to that but honestly don't care if it never happens. This amp is a long term keeper as are my ZU Definitions. I'm all set on wiring and I just picked up Vinnie's wonderful little DAC along with the Sig 30. The only thing I may want in the future is a music server and my buddy Vinnie has that covered too.

Hi

I am interested to hear a fuller review of the amp now it should be fully run in.

Thank you
Eril

Eril,
You're right- it should be fully run in by now. But I don't recall any heartstopping moment when the lights came on and the veils were drawn back.
I'm hardly a skilled or qualified reviewer so I'll refer you to the 6moons review that prompted my purchase.
All I can say is that it is the smoothest, most detailed and quietest amplifier I have ever experienced. There is a backorder situation but there is also a refund/trial period option, so I would advise you to just buy one and see if you want to be the first person to return one. Vinnie is very concerned that his customers be happy and will go to great lengths to insure that you are.
As long as your speakers are reasonably efficient, you should not find anything lacking in a Signature 30.
I now have two of them.