Cool HF Antenna for small spaces

Chris, K8CRM, brought my attention to this antenna.
It seems to be very compact and is getting rave reviews on e-ham.
As with all compact antennas, it is probably somewhat of a compromise
and I would have liked to see radiation patterns and F/B ratio to know
if it is worthwhile to mount it on a rotor.

As we all know, if you want a no-compromise HF antenna and have a checkbook and real estate to match, get a SteppIr.