I use my 4000 daily, love it. I ONLY use it as a power strip for other switched equipment. I like the relay in it because it is big and beefy and can switch loads nicely. I like the nice power bat lever switch to click in the relay and light the red power light.
Other than that, I use an Acurus for my real preamp
The 4000 is everything the guys here say, and then some...