Consider what your budget is, than go with the machine that
has the LARGEST embroidery size within your budget. For a
Brother machine that might only be a 5x7 but I don't know
this for sure.
I have several friends who purchased Brother PE700 series
machines and LOVE them.
Both of my machines are combo machines, but I love having
the option to use either of them as a sewing machine if I need.