[tyrphoto]

I don't have a GR but I have been shooting with my GRD3 for the past 5 years and have no dust issues even though there were some vocal complaints on the internet about some people having dust issues.

Mine has been with me around the world several times over. Sometimes in my bag and other times in my coat or pant pockets. The only issue I have with mine is the infamous screen coating peeling off. Instead of sending mine in for repair, I just used an LCD screen cleaning fluid and using a Q-tip, manually peeled off all of the coating. Problem solved.