Having been using Sturmey Archer 5 speed hubs for several years I'm still undecided as to whether they're keepers, they are bizarrely inconsistent in their performance. . . I may have tracked down most of the behavioural peculiarities to subtle specifics as to how they're serviced, but I've (even) more experimenting yet to do. I'd quite like to try a Nexus red band 8 speed / Alfine.