It’s been a long time coming but OpsMgr R2 has finally released – with general availability shortly.  I spent some time today upgrading my lab environment and the process went smoothly.  As with any upgrade, be sure to review the documentation and make sure any errors being seen are corrected ahead of the upgrade.  You may have some console issues until you get all to the R2 version but there shouldn’t be any major issues.  Be sure to review the release notes for the list of known issues.  In general, this should be smooth but let me know of any problems you encounter.