My house is in South FL so the summer and fall season are when bugs like ants and spiders start to make way into my home. My house is not only dark, but humid and warm due to my area, so it makes the perfect breeding ground. Lately, the problem has been astronomical. Spiders dwelling in about half of the corners of my floors or ceilings, and trails of ants in the kitchen constantly. Any food left out for 5 minutes will be infested in minutes- I knew I had to do something because it is basically an infestation at this point. So, I bought this product and sprayed it indoors around all the windows, doors and corners after vacuuming them away first. It did kill the pests on contact, however, the ant problem still persists in my kitchen although it DID do away with the majority of them. I want to say it has eliminated about 70% of them after 24 hours. They are still coming in, though. The 24 oz bottle lasted me about 2 uses around my entire house, half the first round and half the second round, so just know that if you plan on spraying both indoor and outdoor you might want to prepare yourself for going through the whole spray bottle in one usage or size up to the larger sizes. Ill be monitoring the pests for the next 12 months as it claims, but especially the ants in the kitchen which is my main concern. As of now though, the problem has GREATLY diminished thanks to this spray. I also wanted to note that at first, the ants SWARMED to this spray, it was pretty alarming how they loved it, but I believe they took it back to their colony and died after it being in their system for several hours because of the results. I dont expect it to work perfectly the first time because Ive had this infestation for well over 2 years, but it was finally time to put my foot down because it had become unbearably overwhelming how fast they would get to food or any crumbs. I wouldnt have a problem repeating this every month or every few months with how inexpensive it is. Overall, I am very happy.