I ordered one a couple of weeks ago and used it for the first time last night. I transfered 2 carboys of Dornfelder with it, plus a gallon.
It worked well, I got a good amount of foam so looks like there was still gas in it (this falls harvest). Much quicker than my normal gravity racking.
Now a question for Steve, see in the image below there are some small green bottles with black lids, I think they hold about 2L. Do you know if these are OK to rack into with the pump? The glass feels strong enough but not sure. I use those when I don't have enough to fill a 1 gallon. The stopper for racking just barely fits into the mouth of those, I have to apply pressure to it to keep vacuum. I'm not sure what those bottles are called, I just got them when I bought a bunch of someones wine stuff in the past.