Yes its very useful, i use it for VB and for C#, check out http://www.jetbrains.com/resharper/features/index.html[^] to learn about the new features of resharper for VS2010, i like the code quality analysis, all the Navigation features, the way it highlights tokens in comments and more give it a try, u will not lose anything, but remember it makes VS2010 a bit slower than it already is specially when opening a solution.