They are not really comparable to shimano brakes – you get what you pay for. Foe example shimano pads are retained with a split pin, hopes witha machined satinless steel [pic and circlip
I like the fact all spares are available and as I can lock either wheel with one finger at speed with any of my bikes equipped with them I know if they are lacking in power something is wrong.
They do have a much softer lever feel than some brakes – thats all about preference if you want it or not
If you want cheap effective disposable get shimano, if you want a brake that will never need replacing get hope. I removed new shimano brakes off my bike to fit second hand minis.