I am using one since I have a B that came with the old StAr 5 speed with two cables. I like it a lot, enough gear range for my type of riding and almost the same weight as the 3 speed. I would not trade in this hub for a heavyer one with more gears.

A bit moody on the adjustments yes but it is like most other things in life: learn how to do it and do it right.

I just spoke to a owner of a B that used to be 10 speed (5x2) That bike is now 6 speed (3x2) becouse he gave up on the 5 speed hub. He used two chainrings in the front so maybe trying to adjust that and get it right was part of the problem.

If you have a bike with the braze on needed for the chain pusher you can use a 5 speed hub with two sprockets and get 10 speeds with much lower weigt than a 8 speed or Rolhof hub.

I sugest you try to find out what shifter peopel who report problems are using. I have heard that some of the shifters are not working well.