I just brought a Janome Horizon 7700 and love it. I have owned 3 Janomes . Jem Gold traded it for a DC 2010 which I still have,and now 7700. It is not that hard to a machine to operate and haven't tried FMQ. Only had it 2 weeks :) I have heard good things about the 6600 Take a class before you buy it if the dealer is okay with that. My dealer let me come and play on it before I made a commintment.
Good Luck