I bought mine in March of this year and I really love it. Prior to it I was sewing on a Viking 6570 so, obviously, this is quite the upgrade for me.
I love the accufeed - no more messing with a walking foot. Love up/down needle, speed control and the thread cutter. There are really so many things I love about this machine...it's a real gem!
The only problem I have had with it is that, twice, when I took my foot off the pedal the machine kept sewing. I had to turn it off in order to stop it. I had heard that this was a problem with Janome foot pedals so I was not completely surprised. If it continues I will let the dealer know. I also joined the 6500/6600 yahoo group and they recommend cleaning the pedal out so that is another option. I also highly suggest joining that group. Those girls are so smart and share everything they know!!!
Anyway, best of luck with your decision!