Decware: a worthwhile option?

I've always had an interest in their amps, but never pulled the trigger.  On various forums there is a a lot of positive chatter for Decware, and when one goes up for sale on the 'Gon, it's usually gone in a day or two.

I got a super zen triode amp about a month ago after waiting 6 months for it to be built. Well worth the wait and a great value and I love that it’s made by people who care in the USA. I have many amps and this is as good as anything I’ve heard. It has it’s quirks and might not be the end all be all to all listeners, depends on what kind of listening you do. The quality of sound you get for 1000 bucks is unreal and in many ways it’s as good as amps I have and have heard that are 10X as expensive. Zen is probably a good name for it because it’s those chill and zen like moments when this thing can really connect with you. If you don’t play super loud and have decent efficiency speaker then yes this could be your amp and if you only have 1000 bucks to spend it’s a no brainer.  When a company has a long waiting list to get their products and you hardly see them used it's a pretty good sign

Anyone have any experience with their pre-amplifiers?

If so how would you describe the sonic chararacteristics?