flight simulator is good for helping to learn, and to keep up to skills....yet i have heard others mention that it is near useless.
I've heard that MSFS is good for instrument flying, but near useless for VFR flying - maybe that is what the "others" refer to.
I know alot of PPL instrutors are able to tell who has been playing MSFS when they get into a cockpit as the students head is down inside looking at the instruments rather than outside - I was guilty of it to a certain extent myself - although I thought they gave you those dials for a reason !!.