I've never had any of the machines that you mentioned but as far as computerized machines go, I've had 2 Berninas that were computerized. I was doing a ton of sewing and quilting when I got the first one and the first years that I had the second. I never had any problems with the computer. It would be expensive to fix but with normal precautions like a power strip and unplugging it when you are done using it just in case I don't believe that there are an inherent problems with the computers in machines.