The Good: Installs with no hassles. Finish quality is excellent.
The Bad: Durability is not as good as expected.
Over two years, I went through a surprising number of these bottom brackets on my cross-country bike. The durability of the bearings was never quite satisfactory. I was running a Truvativ Stylo crankset, and these bottom brackets inevitably developed play after a few months of riding. They were also prone to creaking if not thoroughly greased and tightened. On the bright side, I never had an issue with installation or removal. The cups spun in without any problems, and whenever I needed to re-grease or replace the cups I could back them out without undue effort. However, this doesn't change the fact that these bottom brackets didn't hold up well on my bike. Every one I bought was disappointing.