I thought the fs was pretty useful for instrument training, but hampered ppl training initially, as one tends to spend more time looking in the cockpit than out.
Both negative and positive g can be simulated by taking ones laptop on any child's swing.
A wheels up landing can be simulated by jumping off.
ps, anyone remember pre computer days, involving that toy plane that shot up a line from a spring loaded deck, until it reached its zenith, by which time it had turned 'round in readiness for a spot on carrier landing.
Now that was proper flight simming.
(And don't get me started on that helicopter game which used to pivot round a base and could hover, fly backwards and forewards, albeit in a circle, AND WORKED LIKE THE REAL THING.)
Can't help thinking kids of today are missing out.