A friend of mine uses adt and she has not faced any problem so far. Don?t go by the reviews alone. There are some things that you have to consider whenever you choose a security alarm for your home. Firstly check what is the company?s overall experience then what training and certifications do they have.Check whether they operate their own monitoring station.Some alarm companies have a third party to do the alarm monitoring.And most importantly what are the equipments that they use. Here?s an article that I found that mentions some tips on how to choose good alarm companies(http://www.fire-monitoring.com/choose-cheapest-security-alarm-monitoring-fire-alarm-monitoring-company/).And don?t just go by the price of the alarm system try to learn more about the company before you buy any products from them.