I always thought Visual Studio was a dog but one day I opened it with ReSharper disabled and it was blistering fast.
ReSharper makes writing C# a lot easier so I stick with it.
VS2015 has, on paper, some of ReSharper's features but I tried it without ReSharper and it felt ... dead. So you still need it for a complete C# IDE experience.
Second-long freezes... could be ReSharper, could be a different plug-in or a VCS integration interfering with ReSharper. Unfortunately you got rid of it so I guess we'll never know for sure )
Re:Introducing ReSharper C++
by UnoriginalGuy on Friday April 10, 2015 @11:03PM
(#9358270)
They said when they got rid of it the freezes disappeared. So I guess we do know. I too have experienced period freezing with ReShaper so none of this really surprises me to read (in particular if you have a HDD).
It appears like Visual Studio 2015 has many of the Reshaper features I most covet, and doesn't appear to have the same performance issues (likely because they're powered by architecture changes), so win/win, and I save $149 since my employer gets us MSDN.