I use my Brother Duetta to quilt all the time. I use a magnetic hoop and have quilted a King sized quilt of 120 x 120 with no issues. There are many quilting patterns available and the results are very good, it just takes a bit of patience. I also FMQ with a few of my machines, they are not mutually exclusive methods. I have long since paid for my machine in what I'm not spending at the LA quilter.
As with everything, we all have differing opinions and results. I also like that I am not dependent on anyone's schedule but my own.