I got some (TI) to try it out... didn't like it, couldn't get to get it to really work all that great. I found that it had a metallic taste to it.
I finally got a tank (Billow V3) that I finally got the SS to work ok with it, but for all my other stuff, I've always returned to NI200.
For the SS, it worked ok with my RDA, but until I got the Billow, I tried many times to get it to work with my other tanks that I rebuild the coil cartridges for, and it never worked.
I gather that it's a question that you need enough of the wire (as in a dual coil setup) for the TCR value to be enough for the mods I have to "register" it, as opposed to NI that the TCR value are (being the largest variance metal) that most mods can register it correctly even with a smallish single coil.
But at least with the SS, worst case is I'd use it in watt mode and it would be tolerable/useable.