You are going to need a lot of this stuff
I used this product because my neighbor has a collection of stray cats and is completely ignorant to the fact they destroy everyone's property. This stuff does work however you will need a lot of it. I cleaned all cat poop from the area, which you must do for it to work properly. You then need to spray liberally which can be a little tough as the sprayer on this bottle is finicky and if you turn it just right will spray a wide mist. This stuff smells like the old atomic fireball candies. You need to spray every day or every other day at first then Atleast once a week, not once a month like the bottle says. There still seem to be one or 2 cats who dont mind the smell, but overall the product does it's job. Given the size of your affected area and the price per bottle this most likely will not be a very practical long term solution. I  Will update if I see more of a difference.
Rating: 3 stars