I have had several machines and the one i like the best is my Pfaff. I actually have two, an older jeans and satin that does everything, very heavy duty machine, sews heavy items. I traded my 7500 series for a 2144. Yes, it was expensive, but it is worth every penny if you sew a lot. I especially like the dual feed system, (walking foot). IT is the only machine that i know of that you can have the dual feed engaged and still use a quilters guide.
I have never had an issue with service, custormer service is always a phone call or email away.
My suggestion is try them at the store to get exactly what you want. Most sewing centers will take the time and work with you, allow you to sew and try.