Strengths: Look good they matched my Goodridge hoses.
Weaknesses: 1) Prelube inners rust. 2) Aluminium furells shear off. 3) Seals let in plenty of muck.
Overall: Save your money and buy a Shimano XT set for £7.99 they last longer. Totally dissapointed only had them on about 1 month and saw rust on the cable so replaced with stainless cables, defeats the idea of the prelube core but these shifted 50% better then about 6 month later and noticed the shifing was out of index. Re-adjusted no joy so I took them apart to clean and discovered 3 of the furells had broken (fractured and bent) so they now reside in the bin.