I hav a 6500 that I bought new probably 5 years ago? I know the 6600 was not out at that time, but just about ready. I love my machine. I bought it just to sew. Then I got interested in the quilting. Have used it on a Grace Pinnacle Frame for a year and did about 20 quilts-since then bought an APQS Ultimate II for that. So, the 6500 and I just quilt. I have started using the the monogramming to make labels and also to put names on the bindings with dates etc. People really like it. Go for it!