We've been using ChemFree since 2004, they come out regularly and rid us of ants and silverfish! I do notice however that just after they come there is a lot of ants showing up for a few day, then they are completely gone for a while. There have been several times that they only treated outside because we weren't home and I still hadn't needed them to come back as we had no problems inside. (this forum just blocked he word bugggs??)
The technicians have all been friendly, we have a new guy now and I do miss the last guy, but I guess he's moved on to better things!
When calling the office I have never experienced any rudeness, they are always polite and accommodating, when I have any ant problems they have the tech out here within a couple days and always around my schedule.
I like that they use safe products that are effective!
The only slightly negative thing I have to say about this company is that their mail notifications aren't always timely, they send a card with your next appt. time, sometimes the cards are bit late and we always ask for afternoon appts. but they always scheduled for early morning which I always call and change.
I wasn't thrilled about signing a contract but it is good because we always know the cost, no hidden fees and they will always come out when we need them as many times as it takes without extra charges.
Pros: friendly, on time and flexability