I don't think it's comparable to the Mark Bass unit. Construction and components of the Woods amp is impeccable and of the highest level. So are his prices. The Markbass is an excellent bang for the buck amp. They make concessions for construction ease, price point, and other factors that are not even considered in the Walter Woods amp.
They are not in the same league.
I have seen and messed with several WW amps, examined innards, and even have fixed an old "red" one.......
They are well made, in general, that is perfectly true. But they are NOT, IMO, far above Markbass or others as might be expected from the quote. They are quite comparable construction-wise to any good commercial product, and DO have good tone (better than my talent level justifies).
The chassis construction of a WW amp is generally very solid. THAT part is probably more over-designed than most commercial amps. Not all, but most.
The electronics is "OK", with a few "flying" components, lead-supported, and most on a PC board. The PC boards seems in the case of several I have examined, to 'fit" a couple different units, as there were some modification wires and so forth present, some components stretched across to distant holes, etc. Obviously the existing PC board was adapted to new features, as opposed to a new layout.
This is NOT to put down WW or the amps. They are still arguably worth the money and the wait, if you like the way they sound.
No argument about tone, although IMO a WW sounds like a WW, and not like another amp. That may be good, or bad, depending on your taste.
I am just unwilling to consider them quite so far above others in construction as the quote indicates, after having seen several in detail and even worked on at least one.
As for provisions re ongoing service, I understood that he has an arrangement with a 3rd party to receive the records and info in order to at least support the product later. That is both fairly common, and very reasonable, for a one-man operation such as WW.
No, I have never met him. It would have been interesting, though. I'm sorry that I probably won't now, since I am not in the music biz as a daily work any more.