I upgraded to and tried to use version 6.0. It worked fine on C# for me, but in VB it made the editor slow to the point it was unusable. I backed down to v5.1 and can now use it, but it was suffering from similar issues that I had hoped would be solved in v6.0. I've sent messages to support through the online form as well as this board and have gotten almost no response.
I love using the features in R#! I feel lost without them since I've gotten used to having it, but it has not been without problems. This issue with slow/poor performance in VB has been going on for years. When they actually had separate installations for the full and C# versions, I elected to uninstall and replace full with C# only. Now, full is always installed and selectively enabled. No, you cannot go to the license item on the ReSharper menu and change it to C# only unless you are running in trial mode. I did get v6.0 to work better by excluding the large files from analysis, but then I get nothing when working in my VB files. At least v5.1does work.
The issue occurs on relatively large VB files (close to 1 MB) with many lines of code. The analysis apparently brings everything to a crawl (type a character and it appears several seconds later). Last time I reported this issue in v5.1 (same issue, but at least usable) I was told the problem was known and would be fixed in v6.0.
As a developer, I can understand that software such as this can be a massive beast to develop and support. What I find inexcusable is the terrible support that I seem to be getting. JetBrains only offers email and message board support which can be painfully slow, especially when we, the customers, are typically trying to use this software in our profession to earn our living, not play games.
That's my take, at this point. Unless something is resolved, I will have to continue using v5.1 and v6.0 will be my last upgrade purchase. Sorry JetBrains, that's just how I feel...
Thanks for reading..