I use my Featherweight for FMQ and it does a VERY good job. Only problem it has is that the harp is small so you have a rough time moving anything larger than a double bed quilt through it. Since I do predominately smaller quilts, I'm happy with it. Nice thing, the machine is all metal and doesn't fall apart like the bigger, newer machines.
I have newer machines (including a 2005 White from my mom) but this old machine does a far better job than the other ones.