My main machine now is a Pfaff 1475 CD. I recently had it serviced, and it runs like a dream. I have had the machine for quite a while, but still have not used all the bells and whistles. I was beginning to wonder if I was the only one who sewed on a Pfaff. I hardly heard mention of it on the quilting board.
I'm sorry to hear that you have had so many problems with your machine. Maybe you can spend a day with the dealership, so that they can see the problems that you are having with the machine, if they are willing to do so. It might be worth the time spent, especially since you live so far from the dealership.