I went from a Specialize Stumpjumper M4 HT, a Gary Fisher Sugar 3+ to a Specialized Stumpjumper FSR to my new bike Santa Cruz Superlight.

All the bikes have plus and minuses. I still have the HT but I really love my Superlight (which is the same as the Juliana). It's the perfect XC bike. I did have a problem with the disc brakes (Avid Hydraulic) but it was repaired under warranty.