Received one of these about 2 weeks ago with my third order from this great operation. Although AP.com apologize for the "price due to rarity", it's in line with, say, most Anubias species.
I got a tight bunch of leaves about 4" tall with a bunch of roots.
Within days it sent out a runner, which is now hard to diagram in text - it's about 3" long to the next node, and sent out another "forward" and two more at 90 degrees. And another forward. And one of the sideways ones is trying to colonize my Crypt. balansae zone. It is growing new leaves that are 6-8" tall.
I suspect that in a year it will have taken over my entire tank. 75 g with 6x28w t5 lighting, AP.com fertilizer pellets, no "real" co2 but I've been using co2booster lately.
Executive summary: a wonderful healthy plant that seems to want to propagate insanely just as advertised.
June 28 update: limited to 1000 ch. 12" leaves check. Not 'runners' but side stalks like other swords.