I have been very happy with my Bernina 630 - it is now about 6 years old and I have only had one problem, which the dealer fixed with no difficulty and very little cost to me......I do notice that it has gotten a higher noise level as it has aged and the repair guy says that is due to wear on it (lots of quilts being sewed on it) - the quietest machine I own is a SINGER 66-16 (from 1928) - I often use one of the decorative stitches when quilting, instead of that stitch-in-the-ditch that isnt as much fun to do - good luck on your decision and I hope you will love whatever machine you purchase......