Van Den Hul amps and preamps

I saw an ad for the above being offered at a closeout price. The amps appear to be full class A but there was almost no information on the site. I have never seen these products, what is the story?
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Is this the site where you saw the ads?

At the bottom of the page, there are some links to Van Den Hul reviews.
I saw those but wanted to hear from actual users.