I don't have that one. When I'm in a shop that sells them, all I can do is drool on it. I do own - the Janome 9000, 10000, just recently purchased a gently used 11000. I love those machines! I really don't think I would ever purchase a different brand of machines.
You may want to go to a shop that sells this brand and check them out. I was amazed at the difference in size of the throat from the 10000 to the 11000 machine. The thing I like about the machines that I own, is that the embroidery unit is attached to my machine. With the new 12000, it is separate. It does do much larger designs then the ones I have. Again, go and check them out. Have fun shopping and let us know what you decide.