I got my Janome 6600 8 years ago and ran it for 3 years about 6 days a week before I had it serviced. Now I service it once every 18 months. My Bernina 440EQ tells me when to service and it has been in the repair shop more times than my Janome and the Bernina is only 3 years old. I love the older machines where you can do the maintenance yourself.