I have the AQS 2009. Bought it about 6 months ago or so and have made a couple of quilts and several purses with it. It is a nice little machine. The only problem I've had with it is going over double thick batting. I can hear the machine chug a little. But that doesn't happen too oftem so it's not a regular occurance. Also it doesn't come with any quilting feet so you will have to buy a walking foot if you SITD. Also, the light on it is not very bright.
I love that it has u/d needle, stitch speed control, is easy to clean, and is pretty much intuitive. Also, if you need any accessories it fits same as the Gems. Feel free to PM me if you have any specific questions. Overall I am very satisfied with it.