We have a newer spinjet attached to a HP 1050 and we find that if you handle the HP and the Spinjet with care it will hardly ever give you problems. I have called our service tech 1 time for the spinjet and all he did was put a piece of tape on the HP so the paper would glide smoothly and not get caught on any edges. That's the only problem we have had. I would give it a 5 out of 5.