Definitely test drive each for piecing, quilting, and whatever sewing tasks you need, on YOUR fabric and quilt sandwiches, with your thread. I love my Berninas for precise piecing, gorgeous stitches, power over thicknesses, and convenient features like needle control in the foot pedal, easy, one-handed changing of presser feet, knee-lift, and pop-off stitch plate for easy cleaning. I prefer a vertical bobbin also. The harp on the 440 and 630 is 7.5", the Janome is listed as 9", but i know some manufacturers round 8 5/8" up to 9", so it might be only one inch difference. Dealer support does matter. Just know that I have 4 modern Berninas and have had ZERO problems with them. Enjoy your choice!