Comment by LugosFergus

I found the lack of mature tooling to be hugely problematic. The Visual D extension always felt flimsy and unreliable when debugging D.

DUB also exhibits weird behavior. For example, I wanted it to produce separate debug and release binaries, which it won't do out of the box. Instead, it'll create the same binary for both configurations. Changing that behavior was more difficult than it needed to be. Maybe it's changed since then, but I didn't have a pleasurable experience.