I have a Pfaff 2170 and others but use it the most.
Pros----It has the IDT which I LOVE, lots of stitches and can also embroider. I love the way it sews. Also has needle down, the presser foot can raise automatically if you want it to, it has a knee lift you can use. auto-thread cutter, low bobbin sensor. I know I'm forgetting something.
Cons----It's presser foot lifter is on the right side of the needle housing instead of in the back. It's in the way and when I'm trying to move a quilt around under the needle the fabric will bump into the presser foot lever and knock it down again and again. Very irritating. When I bought it I didn't think it would bother me but it does.
Also I don't often use the embroidery unit. I use my Janome 350e instead.
Price---I bought it used for about $2500.
Would I buy the 2170 again? Probably not since I don't use the embroidery unit. But would I buy a Pfaff for the sewing and IDT? Yes