I've been using the CapturePRO Camera Clip by Peak Design for over a year now. I've been using it regardless of what camera I am carrying (Nikon D80, Sony NEX, or Nikon Coolpix L26). When using larger cameras, I add the PROpad for stability. Here is my review of both products:
CapturePRO Camera Clip & PROPad

I just recently received a Cotton Carrier Strapshot, but have only used it on one hike. I will write a full review after I hike a few more miles with it:
Initial Impressions: Cotton Carrier StrapShot
HikingGeek.com - trip reports, gear reviews and trail info.