My main machines are Bernina and Juki. I have a Bernina with all the bells and whistles but I bought a straight stitch only Juki for FMQ. I'm new to this type of quilting and the Juki is helping me improve. My Bernina doesn't have enough harp space. But I use it for everything else.
You will get lots of responses I'm sure. A lot of nice machines out there!!! Good luck and have fun in your search!