It's amazing just how much better the MVAM is compared to the tactical retrofit.
It all depends on the captain. I'm a sci officer and MUCH prefer the Tactical Retro. While I know a lot of my fleetmates swear by the MVAM. I've flown both and think both are great, but find that as a hybrid captain (sci off in an escort), Tactical just has something that works for me better than that MVAM did.