I finally handled a Kel Tec RFB today. The bullpup design makes it really short, the trigger is really quite good, the only two issues are: the bolt release is small and in what feels like an odd place behind the magwell (maybe with use it becomes more natural) and to check and see if the chamber is empty you have to lock back the bolt, take out the mag, turn the gun upside down and look in the magwell. Ought to give safety officers at ranges royal fits!
The price was $1800. Kinda pricey, at least for me. Guess that makes three issues.