Strengths: Looks like I'm the only one to have problems...
Weaknesses: See comments...
Overall: Had front and rear bulbs for 18 months. Plagued by constantly recurring squeeks. Only cured by stripping and regreasing (every few weeks). problems persisted through three sets of bearings. Rear hub just gone back to hope after teeth in body sheared off jamming freehub mid ride.
OK, the squeeks don't affect performance and are just annoying, but these hubs aren't cheap.