I have used these guys twice now and will continue to do so. The first time was to spray outside the house we were renting for spiders, I found over 30 Redbacks!!! The guy who came was friendly, helpful and did a great job. The next time was when we moved into our new house. They sprayed outside for spiders and inside for silverfish as well as laying gel for cockroaches. We have been here for 4 months now and the only live insects inside are a few flies that find their way in but the venus fly trap soon thats care of them!