Not to rain on the parade, but I just had a not-great experience with this seller...
Bought a B. nodosa 'Minnie Mouse' for a very good price, but when it arrived and I checked it out it had no living roots! They were all completely rotted with none salvageable at all. The rhizome was also rotted through in several places, so what I had bought as an 8-growth division turned out to be 3 smaller, rootless pieces.
Other than that the plant(s) look surprisingly healthy, which says to me that the rot happened pretty recently and they haven't gotten too stressed yet.
I contacted David to (politely) let him know about the problem and ask for advice about how I should rehab these little ones, but I still haven't heard back. Right now I've got them sitting in medium light on barely damp sphagnum in the hope that I can get some of the dormant eyes to activate and put out roots before water stress takes too much of a toll (luckily Brassavolas don't demand a ton of water anyway).
So, the price was nice but the quality was less than satisfactory, and I'm definitely not pleased that the seller didn't bother to respond. Happily, it sounds like my experience is the exception (and a previous plant I bought was certainly quite healthy), but I don't think I will personally patronize him again (unless maybe of course if he's selling something I've just GOT to have