I have a 2011 and I find that it was the best deal out there. You get a lot for your money. I do not have any of the "fit and finish" issues that Camera Man had. I don't know if there is a difference between the 2010 and the 2011. I have had a few problems with some of my appliances (air and refrig), which the factory was extremely helpful and quick to resolve. Overall, I find that the quality was much better then the 2009 Fleetwood that we had. And Fleetwood was terrible when dealing with them.
I delt with Randy Howser at Forest River. He really took the time to make sure that we were happy with our purchase. He could have sent me to deal with a local dealer, but he took care of my issue himself.
If you do your research, you will find that all new coach owners will tell you that they had minor issues that needed to be fixed. The biggest diference is how the manufactor helps you through the process.
I don't know when Warren Buffet became involved in Berkshire, but that may be the difference with the quality issues between the years.
I have spoken to several Berkshire owners (2010 & 2011 models) who all say that they love their coach and it was the best value.
As of this date, I am very happy with my Berkshire and fully recommend it!