No experience with refurbished Sony cameras, but at the suggestion of an IT guy who over the years has bought many, many refurbished Dell computers from the Dell Outlet for himself and his company I decided to order a nice Dell 17.3", i7, 8gb, 1tb laptop in the fall of 2012. It was a great price. And I am using it as I type this message.
I added a 256gb SSD to it in February this year for Win8.1 and my LR catalog/previews. Other than that I have done nothing to it. Works fine. When I got it 3 years ago it looked brand new. Anyway, if the Sony refurbs are as good then I would say that if the price is good then go for it.