My Brother PQ1500S is a dream for FMQ, and super fast and reliable for piecing, too. I was lucky enough to get mine for $300 from a Craigslist seller who decided after one seam it wasn't the right machine for him. There wasn't even any lint and his test bobbin was full.
It only has a straight stitch but except for piecing batting scraps I don't need any other stitch. I just pull out my trusty 1990's Singer when I need the zigzag.
Good luck!