I've now been using the Redrock system for 7 months and I also initially had mixed feelings about the setup, but the system is actually growing on me now.
While it is not a Heden or Bartech, for the price you pay, it delivers a heck of punch in a very small package. And for the work I do and the amount of travel I need, every kg and gram counts.
For a traveling, lightweight system, the Redrock micro is fantastic.
It does suffer from interference at times, but often that is fixed by finding a new channel quickly.
I'd say it's a no brainer for someone who wants to own their own system and doesn't want to chuck down 10K for one.