I have an 8 year old Janome 9700--I love it!!! It has never given me any problems. The new "upgrade" is the Janome 9900. I tried it and want it. Not as expensive as the 12000, but it does everything except cook dinner... I have had a variety of machines over the years and the combo (embroidery/sewing) is the best idea ever and I am and will now always be a Janome Girl...
Good luck with whatever decision you make.
Barbara