I absolutely LOVE my 6600p! I bought it slightly used on ebay about a year ago and snagged it for $700. It came with tons of feet too. The accu feed system is super. It is by far the best machine I have ever used. The only complaint I have is that it is awkward to change the feet. I use the 1/4 inch....the SID.....and the open toe a lot so I change them often. If you don't find one you may want to watch ebay. I was scared it may be a lemon but the person had a 100% "good" rating so I took the plunge.