I think it is interesting that whenever people ask for information about sewing machines, almost everyone replies that they love whatever machine they have. Since they usually aren't specific about what particular features are leading to their satisfaction, I assume that in general whatever machine we each have seems to meet our individual needs, which is great, although I don't know what it means for those of you who have dozens of machines :). So my conclusion is that we've all done a great job of thinking about and deciding what we want in a machine, researching the choices, testing them, and then settling on the one that best matches our desires and pocketbook.
I'm new to Janomes; only got my AQS a couple of weeks ago, and I find it confusing when people talk about "Jems" because, as Quilter7X pointed out, there are several varieties of Jems (is the Gold Plus new?), and they each have different features and prices. I would just caution anyone thinking of buying one of these little cuties to carefully compare each model to make sure you're getting the feature(s) you really want in a small machine.