Do you have a machine still under warranty? If so, know that if you mess it up some way or if you don't take it in occasionally for cleaning/service the dealer can possibly not cover warranty issues. They can say it wasn't professionally serviced and not normal wear. Just an FYI to consider. I don't mess with any of my computerized machines that are under warranty. Having them professionally serviced is simply part of the price of owning one. Those who aren't certified can void your warranty!