I bought a Singer S16 which is a Janome 1600 clone. I use Janome attachments and have a Janome extension table on the Singer. The Singer S18 is a clone to the Janome 6500. Necchi HD22 is the same machine as a Janome, I think the 100 but forgetting the Janome model right now. Other than gold versus purple/blue I see no difference in the S16 and the 1600 and it is a solid straight stitch mechanical machine, much cheaper than the Janome and I like the gold better so worked out for me. I think the Necchi QS60 is the same as the Janome 6300 so I would look at which one is cheaper if you have dealer options in your area.