Last winter our alarm was off for days and we never even received a call. The outage was due to something proprietary to Ackerman losing battery or power....we called and tried to get someone out... Last winter our alarm was off for days and we never even received a call. The outage was due to something proprietary to Ackerman losing battery or power....we called and tried to get someone out ASAP to fix it but apparently new customers getting set up were more important than existing cusotmers that pay on time getting good service and feeling secure in their homes. We are currently open to other services still months later because of this. It left a really bad taste in our mouths.