Agreed! I tried to make OBS work for a video podcast, and it was a very unpleasant experience. vMix has great features: built-in remote callers, audio buses, MIDI controller support, titles; just to name a few that I use.
I love and use free software a lot, but vMix blows OBS out of the water for semi-professional video productions.
Btw, there is a midi plugin for obs. I used it, worked like charm.