I have two CODEs with Clears. Both feel solid and well built. I have not used the KUL so I can't compare it against that. One negative thing about the CODE is the amount of ping it produces. It really annoyed me at first, but then I got used to it and now I only notice if I'm listening for it. Some of the ping issue is probably my fault though, I tend to really hammer the keys so I'm sure the amount of force I'm using is making that situation worse. All in all, I really like it. I bought a second to match my first so that has to be a good sign.