I got mine last year and just love it!!! Quilting with it was amazing also. My dealer had me go back, at my convenience, for a class and they let me stay til they had answered all my questions. I went over my hour; but they didn't make me feel badly about it at all. They will answer any questions if I call them also.
You will find a few groups online....some Janome and some specific to the Horizon.
Enjoy!!!