In Visual Studio 2005/2008/2010, we can drag the selected tests from the Test List Editor into the test list. This is a good feature, but it is deprecated in VSTS 2012. The new feature is called Test Explorer.
If you have 1,500+ unit tests in Test List Editor in VSTS 2010, it is not easy to upgrade those tests in VSTS 2012 because it is deprecated.
Do you think Test Explorer is user friendly compared to Test List Editor?