Nice review. I agree on all points.
I would expand on your con on the fill port. The other issue with the fill port is when the wick swells it causes a vacuum lock when trying to fill the tank. I wish they had put the fill port in its own slot away from the wick. Sort of like the iJoy Classic has it. I, like you, always fill with cap off. I then wipe it all off and put the cap back on.
All in all this is still my current favorite RDTA. I have the iJoy Classic as well and I like the Skyhook better so far.