Same here. I bought a second Mini today as I can't trust my Crowns while I am out and about. I prefer the Crown's vape bit they leak no matter what I do. I use the RBAs (tiny but a breeze to build) but recently picked up 10 0.5ohm OCC coils to keep a couple in my laptop bag as backups for work/travel.
I can't see anything else being my main type of tank in the forseeable future as they really are solid. In fact, I also just ordered 10 replacement glass tanks, 4 more RBAs and 20 sets of O-rings (all authentic) to ensure they are with me a long time. Fasttech is super cheap for the Kanger maintenance stuff.
Same here the STM is my main tank for vapopoclypse. Plenty of parts. I have 4 tanks now and will get a couple more.
A very versatile and trouble free tank. Aside from my first wicking attempt I have had NO leaks whatsoever not even a drop. Never a gurgle with the RBA deck. Now the 1.2 blister coil will gurgle just a bit after a refill but vapes thru well.
For 23.99 at Vaporbeast a real deal.
FT clones are $16 but for the difference not worth the gamble to me.
I did get some bases, RBA's, Glass and gaskets from them though.