Yes... I've got two of them (had them for about two weeks now), and I think they're the best low cost LDC mic available anywhere.
No, I don't work for Alan Hyatt, but I will say that I've recorded vocals, acoustic bass, and an acoustic guitar with them so far and am totally amazed at how good they sound... very open, smooth with a bit of air on top, and absolutely huge. Although I'll probably continue to use a pair of SM-81's on acoustic guitar, the B1's did a great job none the less. The acoustic bass really floored me... detailed, full, almost bigger than life, but not hyped-sounding. I'm going to try them out on a few guitar amps and drum kits this weekend.
They're very sensitive, so if you're recording on a wood floor, buy the spider mounts. The B1 comes with a black mic pouch, a standard mic clip (looks a lot like
an AKG D-112 mic clip), and a large foam wind screen... all for $80-$95 each! My two are very consistant sounding (I got consecutive serial numbered mics), and the build quality is as good as any mic I've seen. They are worlds apart, sound, consistancy and quality-wise, compared to a pair of Oktava 319's that I tested and returned a month ago.
On top of that, I'll have to say that Alan himself stands behind his products. I had a mic clip problem, which Alan followed up on personally. VERY impressive.
So, I think the B1 is a great LDC mic value... so much mic for so little money...