I love my sapphire 870. I've been able to finish three quilt tops and machine quilt one of those since gettting it. Haven't done any actual sewing with the fancy stuff yet, but I've played with it and can see all kinds of posibilities.
I thought that it didn't like Thread art brand thread but then I found out (read the fine print) that with the walking foot on I have to lower the pressure foot pressure.
Thanks for the info about the walking foot johnette. Haven't got one yet but it's next on my list of accessories.