I have the Pfaff Hobby GQ and it is great for piecing as well as quilting. I haven't got the room to set up the frame, but I received my MIL's when she downsized and I might get the courage to set it up in the den or something at some point. There is a great yahoo group that has tons of help for you. They can tell you about threads, needles, presser feet and so forth. The link is
http://groups.yahoo.com/group/PfaffHobbyGrandQuilter/
I hope you try it and I know they will welcome you. They are a great group of friendly and helpful quilters. Good luck and keep us posted on your progress! :D