Another ABM Innova owner/lover here. I have the 26" model with their regular stitch regulator. I adore my Innova!! IMHO it has the most bang for the buck.
If I were buying now I would upgrade to the lightening stitch regulator. Innovas come 18" 22" and 26" and have one of the nicest frames on the market with a 4 roller system and never any need to adjust the take up roller. They move so nicely you can quilt easily with just your fingertips of one hand. In fact when I do pantos I do quilt one handed.