I love love love my 1up. It isn't adjustable like the others claim to be - but I found my Kurt just didn't work as advertised and changing gears on the bike does. The 1up is smooth and much quieter. It's lighter, easier to use.
http://www.amazon.com/1up-USA-A-2000...ews/B000PDAU0W
http://www.1upusa.com/product-trainer.html