I have one -- had one since August, but now have a new one - A HandiQuilter Avante. I'm just as busy as I want to be. I have 4 quilts sitting in the room to do for customers and have 3 of mine to do. I'm on "vacation" right now but plan to ramp up the # I do starting in mid June.
My advice is to NOT buy one with the plan to get work to pay for the payments. It takes a while to get ramped up to feel good enough to do quilts for customers. How long that takes is a personal thing -- consider if you work outside the home or not, and how fast you catch on, and how much hand/eye coordination you have.