The only thing that my Artista 730 does that I don't like, is it de-threads when I use the auto cutting mechanism. It does it less when I use Metrosene, and more when I use Aurifil.
I don't know if this is just a quirk with my machine or not. I've only taken in in to be serviced once, and they gave it back to me and said there isn't anything wrong with it.
The software is very difficult to use - you will have to take lessons to learn how to digitize.
It does sew a beautiful stitch. Love the feet that come with it, and all the many possibilities for additional ones.
Hope this helps.