Sort of works
Info on Amazon did not indicate you had to spray it every day for the first 7 days as instructed on the bottle once you receive it.  Had I known that I would have probably ordered 2 bottles at the same time to cut down on shipping costs..  One bottle had to be "stretched" to last seven days.  It has "sort of" kept the feral cats away, but not really. Even though I spray the fence line, they still go in the neighbors fenced back yard and drive my dogs crazy.  I live in a townhouse so our yards are very small.
Rating: 3 stars