My bike came with a LEV and I recentlty switched out to a Reverb. Partly due to upping the drop but also partly down the the creaky seat clamp on the LEV driving me crazy. I tried some 3M tape on the clamp faces which hepled but didn’t totally cure the issue. It also had the orignal cable connection interface that has now been revised. It did disconnect itself once in 18 months use.
I’ve been more happy with the Reverb overall. The contectamajig is handy, shortening the cable was easy and not having to bleed it for 3 disconnections has been useful thing. I run the original lever flipped upside down and find it ergnomical enough with a slightly long throw. That is the only real downside, the hydraulic activation has some sort of a slight time delay compared to cable. As mentioned you can get aftermarket levers systems to fix this.
Both posts themselves have been fine, always going up and down when needed (as long as a cable is connected!). I did look at the Fall Line too but as my bike takes a 34.9mm dia post I decided to stick to a brand that offered this size for more surface area and hopefully reliability.