I’ve a LEV on one bike and a Reverb Stealth on another, in all honesty it’s hard to pick between the two.
Southpaw lever is far far better than then Reverb plunger but as said the standard KS remote is crap.
I’ve had less problems with the cable remote on the LEV than the hydraulic system on the Reverb, saying that it in theory the closed system of the Reverb could be maintenance free (if you were lucky, never damaged it or had to remove it) where as the LEV will need a fresh cable now and again and can suffer a bit in really bad conditions.
When I 1st got the LEV it started to sag almost immediately so stripped, bled and rebuilt it my self (quite straight forward to do at home) and it has been rock solid ever since. My Reverb now drops about 10mm. The LEV has developed a bit of rotational play but hoping to sort that out with some new bushes.
Overall been very impressed by both, though I’ve a feeling it’s still a bit pot luck getting a good one.