If its your first wheel, you're going to love it!!
I have the same one (if its really the Logitech Driving Force GT...) Had it about a month so far, and it changed the game completely, its waaaay more fun with the wheel
To get the most out of using a wheel you will want to make sure that you mount it properly to either desk, a wheel stand, or a sim racing chassis.
For a very short time I had my wheel mounted to my computer desk. This gave a much better seating position for using and wheel and pedals. I've since built a chassis.