I don't have a UFS yet but I will throw in my .02.
I love my iAtty but no matter what I do I have to replace or clean at least the wick every 12 hours of use or so. I typically run 1.3-2.1 ohms 3.7v and it doesn't matter if I use ceramic or fiberglas apparently the juices I like caramalize around the wick then taste burnt. I've tried 5 different vendors all 60/40 or 50/50 and a variety of flavors (usually sweet I don't like tobacco flavors).
So the iAtty is great but if your results are the same as mine pe prepared to fiddle with it at least once a day.
I'm with you in the boat 100% Fright. It does suck to have to clean this thing daily. I usually clean last thing at night so it's ready for me in the morning.