I recently picked up a CK ceramic bottom bracket for my new MTB. It spins nice, but as many have said I'm not sure I can tell the difference. And for the record I didn't buy it expecting anything special. More of a wait and see approach to its overall value.

What I can tell you is on another bike I have a Wheels Mfg angular contact steel bearing BB. There aren't enough O's in smooth to describe how nice it spins, and it was $100 cheaper too. I can only hope the over-priced and over-hyped ceramic BB can match the performance and longevity of the Wheels BB.