Finally gave mine a go on a few different trees today and certainly have a few thoughts...
My foremost concern was trying to compensate for the slightest amount of taper as you ascend. Seemed like no matter how tight I started off, I would end up with the platform tilted away from the tree in less than 12' up the tree. I want to try starting the climb with 2 cranford rope on steps and then set the platform to hopefully make up for the taper. With most climbing stands, you can get around that by using the top portion to hoist yourself up to the platform that is set at about 4' to start. You just don't have that option here because I can't think of a way to do that with just a tether.
Along the same lines, I think I'll be ordering the shorter 3' cable. Maybe I can't judge tree diameter very well, but I found a 7-8" tree is tough to make work. Plus, I think most trees I eyeball for climbing, the 3' cable will suffice.
Another thing that surprised me was side pressure. I don't want to go against mfg's recommendations, but I had no problems leaning off the side of this thing once the leg strap was tightened around the tree. I only did so at ground level to eliminate the pucker factor, so take for what it's worth.
With regards to the pins ... some have mentioned not liking the pins for the top bar, but I've got no issues with it and I prefer for it to lay flat. I'm going to try putting heat shrink around the wires of the pins and probably stealth strip the side and angle bars to prevent potential noise. Along the same lines, I kinda like the old school nature of the pins and tubing. Reminds me of my first API climber, circa 1998 (yes, I still shoot feathers)
Overall build quality is excellent and I'm happy with the purchase (other than the seemingly early-adopter idiot tax I paid).
I'm committed to tinkering and practicing with this thing because I do believe it'll cut way back on the number of times I have to shlep through the woods with climbing sticks.