I absolutely love mine. I piece on it as well as use it on the frame. On the frame, I have a stitch regulator which helps me alot!
The tension was the hardest thing for me to adjust. I finally got it right, and I can't tell you how- I just continued to mess with it.
My needle threader worked for a while, and doesn't work well now, so I don't use it, it also took a while to figure out.
Once you make friends, you may never go back. Her stitches are sooo pretty.