I have a Pfaff Creative 4.0. It was expensive but worth every penny. I have had Pfaffs for year. I first bought one for the integrated dual feed, which is a built in walking foot. This one has it also. I love the thread cutter. I was always misplacing my scissors. When you have the needle down feature on, when you stop the pressor foot rises about 1/8 of an inch so you can slip your next piece right under the pressor foot. Love that feature. It FMQ beautifully. No stitch regulator but with practice I don't need one. It has a 10 1/2 inch throat. That extra room is priceless. The bobbin is a little bigger than my last Pfaff so I don't have to wind bobbins as often. You can get this machine with an embroidery unit, but I barely have time to quilt so I thought I would wait on that.
The down side is that this machine is big. It is hard to take to sewing classes. But I have gotten so used to all the features it has I lug it around anyway.