My only thing is I wonder how effective it will be on my yard. I have a mixture of St. Augustine and something else in the front yard and from what I've heard, the Bonus S works better on St. Augustine generally. We'll see how it goes.
Also funny story. While trying to get my lawnmower started, it took me about 20 tries with nothing going. I looked around the engine and noticed a button (which I now realize was the Primer). After pushing that a couple times it started up immediately after. LOL, learn something new everyday.