Sure it will roll, pitch and yaw with you at the CoG but it can't replicate the acceleration or "heave" (g forces) associated with real flight.
It is not a full flight simulator by the sound of things but a synthetic trainer. Forget acceleration G forces. That doesn't help you fly on instruments. Most synthetic trainers will give you the scan practice you need for proper flight instrument interpretation. It just depends on how much sophistication you can afford.