My opinion would be considered biased because of our support deal with Left Coast. However I can say because people know we have this tie they will bring Bob Long gats with issues to us especially those from left coast. I have known 3 G6R's with issues brought to us. The first two were switching themselves off randomly, changed the battery job done. The 3rd had an oring missing that goes between the body and the spacer that connects to the Hpr out of the box.
There are no common issues that I am aware of.
They are Light probably the lightest available, efficient, very very low recoil, quiet and have a low profile.
I can honestly say I would not give mine up for anything. I have just ordered a 2012 one as mine needed a sister. I can add to the order
Speak to J.Cooke he had one and is not tied to anything.
We're about at Bricket Wood regularly if you want a shoot...
P.S. If you get one get an LP Poppet aswell. That's the only upgrade worth having.