Like Nan and SBG, I love the build quality and performance of my Juki (not a sit down model) and I have played on a Miyabi at a show last fall and was impressed. I keep trying (stand up) long arms but always seem to end up playing with the sit-downs as they feel so much more familiar. Right now I'm quilting a large wall hanging on my little TL2200qvp mini wishing I had that wonderful larger throat space. I can't remember if the stitch regulator on this brand/model was 'noisy' or not but I do recall quite a difference in noise level between manufacturers. Also, I will 2nd (or 3rd) the notion of being within driving distance of an authorized Juki dealer. Take your time, test it and compare and let us know what you determine is best for you!