Ladies, please be cautious when spending on these expensive quilting machines.
I own a Sweet 16 and absolutely love it! I previously owned a mid arm on a frame. I didn't like the small throat nor the standing up. It was very hard on my back.
With the 16 inch throat sit down there is still a little maneuvering to be done on a large quilt. But when I am FMQ I only care about the 12 inch square under and around my needle. I learned that from a class by Sue Nickles. One of the best pieces of advice I've ever been given.
Stand up frames require 3 layers to be loaded. It was extremely difficult for me. Sit down quilters require pinning or basting which I can do on my floor and/or my ample sized (4' by 6') cutting table depending on the size of quilt.
You choose. I love my sit down.