I have a Pfaff Performance 2056 that I use all the time. I also have the Pfaff Grand Quilter, that only sews straight stitch and I use it for machine quilting.
When I was looking at embroidery machines, I looked at Pfaff and various other models, most of them were combination machines, sewing/embroidery. I already had a sewing machine, so I decided on the Janome 200E machine, it's embroidery only, it has a 5.5X5.5 hoop and it does what I need it to do and it fit the budget which now a days is a big consideration.