I have a Pfaff Expression 2.0 and I love it. I have used it for 8 years and have made over 200 quilts. It isn't the machine you asked about, but I thought perhaps my information might still be useful. My machine has lots of fancy stitches I don't use, but that is okay. I love the large harp, need down, and attached walking foot.
I was able to try mine out before I bought it. I hope you are in a similar situation. I tried out five different brands and decided on Pfaff. I have no regrets.
Dina