Well, I gave the Facelift resin a test this time round.  I usually need to change one of my canisters once every 4 to 5 week. (Resin only system using 2 canisters on rotation)
Tulsion resin never goes past 4 weeks, Unger resin impressed me with just over 5 weeks and Facelift?   Well......
It lasted one week.  Complete pants.
I've tested these so you don't have to.    So that's it's only value to me.  Never again.