Like Syrinx, I have a standard Janome machine and I agree with everything she writes. Mine is a straightforward mechanical machine, I've had it for 4 or 5 years now, and it's great. Yes, it has snap-on feet, but I don't know whether Brother feet would be compatible with a Janome machine.
The Atelier machines are impressive. I occasionally look and dream, but I'm happy with what I've got.