As already indicated, it is true that this product of luxury and we can very well use FSX without him ... Nevertheless it greatly enhances the realism. Personally, I use it to complement the yoke, rudder and Instruments 3 panels and there, it becomes the top both in use at level look. I plan to complete the multi panel and radio but we must admit that the bill becomes salty I wait ...
Otherwise hardware trusted and well finished. It is well recognized by Vista.
Summary: expensive but great fun to use.
Adding on Instrument Panel: great accessory but in my opinion should not be used in the unit. It takes at least 3 but ideally 6 allow you to build up a great simulator but at what price ...