Well, is it true that if takes no tools to take it off? I don't see how the freehub can manage to not escape in that case.

Also since freewheels were dropped mostly because of broken axles, it just doesn't sound safe, even considering how cheap the hubs are. Granted the Circus Monkeys have more and better placed bearings, I still wouldn't want to end up with a cassette flying off due to misalignment. Unless I'm wrong and the axle can really take care of that... Even Freewheels had a lot less exposed axle if they failed.

Again I'm not sure one way or the other, I'd just like to know before I buy them.