Folding Bikes - Downtube Bag/Racks/Trunk

Anyone use the Downtube bag, rack pack trunk, or seatpost bag? If so, I'd love to see them in action - I really like the rack pack trunk for instance - does it really have zippered panniers? And is the bike bag itself worthwhile for carrying the bike, say into a subway? Thanks!

p.s. I know there are a lot of other bag options - I'm just curious about the downtube ones :)

I have the Downtube bike bag. It functions as advertised, but has a few drawbacks. First, it's a little clunky on the bike if you have the stem adjusted for a more upright ride. Second, the bag takes about three times as long to fold as the bike itself. Finally, the bike is harder to carry in the bag than out. The main benefit of having the bag is in situations where you need to "smuggle" the bike into a building (like my office). I've had no trouble taking the bike into the NYC subways unbagged (although I wouldn't advise trying this - with or without a bag - during rush hour).

I'm also looking for a trunk that fits the rack on my Downtube 8H that will detach quickly and carry comfortably off the bike, if anyone has a suggestion.

look at one of those topeak quick release rack and bag...i have them and it works great.

I have the bag for my Mini and used it for about a week, before the strap broke. I have had no problem taking the bike on NYC subways and the PATH trains unbagged - although the PATH security sometimes ask me to fold it in the station. No problem.

here is my topeak rack with a topeak bag.

http://img12.imageshack.us/img12/3033/img00136.th.jpg (http://img12.imageshack.us/i/img00136.jpg/)

http://img39.imageshack.us/img39/1172/img00138g.th.jpg (http://img39.imageshack.us/i/img00138g.jpg/)