I've been a pretty staunch KK guy for years. I love kurt's milling vices and was tickled pink when they went solid into the trainer business. They have a long reputation of high quality manufacturing and trainers are the smallest and simplest side of what they do.
That said, I am a Saris man and until recently I wouldn't consider telling anyone to get one of their trainers but the Jet Pro is redesign of the fluid 2 - uses a magnetic coupling to prevent leakage and is more portable, better adjusting, etc than the KK is right now.