I used this service in the spring of 2017 when I found a carpenter ant problem in my basement. Shawn came by for a flat rate to take a look. He dropped some traps, sprayed around the edges of my basement and around the exterior foundation. Using his 30 day callback guarantee, he came back at my request a few days later when I was still experiencing ants at the same rate. Then I called him back for a third visit. He wasn't able to come back until after the 30 day window but still honored that because I had called him before it expired. This time, we found the carpenter ant nest in my side door frame and he eradicated it. I haven't had a problem since.
His first visit left something to be desired but his two follow-on visits accomplished what I needed and met expectations. Highly recommend.