If you just want to sew and quilt then either the 6600p or the 8900QC. I have the 6600p and love love it...The 8900QC is just a step up from the 6600p and I believe it has throat room of 11in. as 6600p isn't quite 11in. Either machine is good. I also didn't want a combined machine, so I also bought at Janome 350e embroidery machine, which I also love love love.....If you choose between these 2 machines it will come down to cost and a few extra perks on the 8900QC.