The nice thing on the Innova is that the stitch regulator is built in. With the HQ you control the stitch regulator like a computer mouse. BUT I think that humongous metal block right behind the foot would be a big distraction for me. I like visibility all around the foot and even went for the open-toe foot on my HQ Sweet 16.
All you can do is try it out and see what you like better and which one gets you more bang for your buck.