SSMS - Experiences random hanging. I've experienced random hanging, plus slow response when using SSMS for SQL 2012. The hangs are very random and I've never been able to reproduce them. However in all cases, during the hang, SSMS displays a balloon help stating that Management Studio is busy and to try the step again later. The slow response is mostly in Object Explorer. For example, I'm seeing 20 to 30 secs when trying to open the list of databases. In comparison, SSMS for SQL 2008 opens a similar instances in under 3 seconds.
In general it appears that SSMS has not received enough attention in this release.