I have owned a Viking 6690 since 1982. I've really worked it, having had a monogramming business for a while in the 80's. That is when you did it in a hoop using free motion. I've sewed wedding dresses, made over 30 quilts, done mending and made garments. I've never had to take it to the shop, knock on wood. When I purchased the machine they gave me classes on how to use, service and clean the machine. It was quite expensive in 1982 ($1200), but I love it and will use it until it won't do the job for me. I have a little lightweight Janome I take to classes. I like it too. Jaunita in Kansas