A very good experience for the most part. The only...

A very good experience for the most part. The only real negative is communicating withe the door locks from our iPhones, which was a main reason for getting the system. We periodically can't get the doors to lock or unlock through the phones, even though we can arm and disarm the system through the phones. Also, there are times when the phones show that the doors are locked when they are not.