I have one. I bought it in May. I set it up and it is fun to play with BUT. My sewing machines throat isn't very big so it would be great for table runners, wall hangings, baby quilts, and lap quilts. But not really anything bigger. The first and only thing I used it on was a wall hanging, without a stitch regulator I could see that I would definitely need practice before I would be good at it. I think I read somewhere that a walking foot helps.
I used my kitchen table the placement of the cords on my machine required that I have a hole to thread the cords through to plug in. You can also get a standing frame for this and use it for hand quilting.
I was going to try one of my older machines the throat was a little deeper and taller than my new machine. But life happened. Then my DH said go ahead and buy a Bailey's Home Quilter - so I am getting the 17 inch arm machine can hardly wait.