Upgrade 2009 to 2010

Does anyone know if it is safe to upgrade to SW2010 yet? We have been burned in the  past, upgrading to a new release only to find major problems. This has caused us  considerable down time or reduced production due to the problems. I want to be  sure there are a lot of users that have made the transition and are happy with  the software before I make the move.SolidworksGeneral