I had a Viking with the bells and whistles, bought new and used it for several years, the last year with troubles. The feed dogs were very sluggish, so I called the repair shops and no one would touch it. They said it would cost way more to fix than to buy a new one. I couldn't even give it to them for parts. Never again would I buy a computerized one. I went back to a mechanical heavy duty Singer and never looked back. Obviously, I'm not doing fancy show quality quilts, but I do a fairly good job and love it!
My suggestion to you is to avoid Vikings!