I have a WOW III which is presently on an HQ I frame. I am looking to purchase the HQII or the HQ portable professional frame so I can use my PC Quilter without having to modify the present frame.
The WOW is a workhorse and the only problems I've had are loops on the back of the quilt due to inaccurate tension, which is more often than not my fault. I am a newbie to the whole thing and haven't mastered the art of getting my tension right yet. She will use almost any kind of thread and regular needles, including an embroidery needle.
I would like a larger bobbin and that will be something that I make sure to get when I decide to upgrade. I haven't tried any ruler work yet as I do not have a base, but have done 'practice' quilts in free motion and panto patterns.
Other than that - I like the set up and plan to keep her for a year and then upgrade to larger throat. She is 16".