I'm not saying its not useful. My daily work currently is VR development in Unity and so I'm using C# in Visual Studio with ReSharper which together give one of the best and most complete "basic code intelligence" experiences I know of. It's great and useful but while it makes me more efficient it just doesn't have much impact on the actual hard parts of programming. It improves the workflow for the routine parts but they are merely time consuming, not difficult/hard problems.