IMHO you're getting a good antenna. We're happy with our King Jack, its much better than the old bat wings we've had over the years...and you don't have to remember to crank it down!
A couple of things we learned:
If you have a problem with intermittent signal, or the signal completely randomly dropping, take off the cover on your ceiling and check the coax connector to the electronics module. The connection in ours was loose and it caused weird, random reception issues. The hint this is a issue will be the signal strength lights will either be off, flickering or dim.
Using the signal strength lights on the antenna base is a pretty good way to set your antenna. But using the signal strength meter in your TV's software, while rotating the antenna, will really help you pick up a particular station. We had over 30 channels "discovered" at Goshen using our King Jack. Some were a bit intermittent but that is pretty darn good for fancy "rabbit ears".
Our particular antenna install does have one interesting "gotcha". The directional arrow on the turning knob is 180˚out of phase. When the arrow is facing the front of our coach the antenna is pointing to the rear. This was the source of some interesting conversations between the DW and I at Goshen when I was outside telling her which way to orient the antenna to match the units parked around us!
The knob is "keyed" so you just can't remove it, turn it around and re-install it. I had the FR service techs look at it during the FROG rally and the only solution they could offer was to replace the unit under warranty. Since it works well, and doesn't leak, and we know
it is backwards now
, we elected to leave it alone...