I've had an SKS Rennkompressor for several years and to be honest I wish I had bought a Lezyne (several friends own one as well as my LBS). I find the Lezyne much smoother, already had to replace the hose and had the handle come loose a couple times. I do use my pump several times a week and take it on trips so it's still been better than the cheap ones with tons of plastic, but I think I'll ask Santa for a Lezyne.