I've had my 2010Q for quite some time now, and I've never bought any other feet or accessories for it, except for ordering the acrylic insert for my Gidget II table so the Juki would sit flush.
I did do a modification of that darned noisy clanking walking foot. I was doing a large quilt with lots of stitch-in-the-ditch and the noise was driving me bonkers! I took some photos and keep meaning to upload them here so others can see what I did. It's a very low-tech solution,
involving shelf liner, but it worked! I'll try to remember to share it soon.