Works flawlessly so far, build quality, 2 bolt cradle, small remote

Can't adjust air pressure/return speed (AFAIK), 100mm drop only, plastic remote feels kinda cheap.

This is one of the "budget" dropper posts out there, and so far I'm happy with it. It came stock on my new bike, but is reasonably priced purchaced separately.

The saddle cradle uses two bolts so there is no creaking or slipage. I experimented with saddle position a couple of times and haven't touched the bolts since. No need to crank them super tight to hold the rails either.

There is slight rotational play, but it's not enough to be annoying and certainly can't be felt when sitting on the bike.

Return speed is on the slow side and I haven't found a way to adjust this. As per KS user manual, there is no way to adjust pressure on the Crux i. Not really a problem, but some people may be used to faster (read "instant" ) return speeds.

Can't comment on installation as it was performed by the bike shop mechanic.

At 100mm of travel it's fine for XC bikes, frames with long seat tubes or short riders, but another 20mm would be welcome otherwise. I'm 1.62m and it's enough for me even in the most technical trails, but a bit more travel would get the saddle completely out of the way.

Has not seen use in excessive mud so far so can't comment on that. Works as it should so far without any hick ups. After every ride I lube the seal externally, cycle the post a few times and then wipe it with a dry piece of soft cloth. Keeps it clean and hopefully will increase service intervals.

Overall It's not a flashy bit of equipment but it works fine.