I won't be able to install this shower set yet, so I can't comment on function or longevity. Our new bathroom is still waiting on a couple of contractors before the shower can be finished. 
With our well pump system, we won't have enough pressure to use the rain head, but I liked the rest of the system enough that I'm happy to get a high pressure replacement head. 
All of the pieces look very nice. The packaging is impressive, compared to other offshore products we have purchased in the past.  Manufacturing standards seem to be high. Only time will tell if we made the right choice. 
I will be ordering a replacement cartridge this week, just in case.