Does anyone own a Viking Opal 650 or 670 machine? I watched a 38 min. tutorial on the 670 last night on YouTube. I was impressed. I don't know how much it costs, but it sure has a lot of nice features. My 6 y.o. Viking Emerald 183 is headed to the shop today. Not sure if it's fixable, so I'm scouting for a new machine, just in case. I'd appeciated any feedback, both neg. or pos. Thanks. JCY