yes because they clean in areas of your sewing machine that you can't reach. Since you machine is expensive think of it like a car, you can change the oil yourself but is that a full car tune up if you have yearly maintenance versus someone who didn't whose machine do you think will last longer. My espire always came back lint free on all parts when I got it back, not just the bobbin case where I can reach. Also things wear out on a machine causing them to malfunction, a good servicing should spot this before you cause more damage to you machine. I service my cheapie machines too and they have lasted me for years, plastic parts and all, and I have had no problems since I keep all my machines in tip top condition