have one on my coleman 13.5K and it will start from my old honda 2000 with the honda in eco mode just fine with micro air. The issue that will arise is altitude. The honda 2000's run out of "omph" around 3500ft. The honda 2000 went to our son when the 2200 came out and it will run the coleman at 8,000ft no problem.
So, the micro air does what it claims, very very well. But make sure your generator has enough output at the altitude you want to run at. The 2200 while only an extra 200W, has a 25% larger engine, likely mitigating the altitude issue.