I have delayed writing a review for more than a year so I could provide an accurate picture of the equipment and services provided by SimpliSafe Home Security. In short, the equipment, service, and support have been nothing short of outstanding. From the initial arrival of the alarm equipment and sensors, the installation was simple and intuitive. Customizing your equipment needs is very easy and the sensors are pretty portable (unless they are permanently mounted with screws) so you can move them as needed or if you make a mistake. Once the equipment is set up, getting the sensors to 'talk' to the base station and keypads was easy. Select a monitoring package, place the base station in test mode, and before you know it your alarm is up and running, monitored continuously. SimpliSafe even gives you a 3 day trial or test period so you can familiarize yourself with the operations and limitations of the alarm system. Any needed support provided by SimpliSafe and the monitoring company has been professional, prompt, and customer focused. Ordering additional sensors or supplies takes only a day or two to be delivered and is just as easy to add into an existing system. The savings over a traditional wired system is enormous and, best of all, there are no contracts. You can change monitoring levels (or select none at all) whenever you desire. There is always some bad with all the good: 1) Our T-Mobile/Verizon cell coverage is not particularly good. It took a considerable amount of time and effort to find the 'sweet spot' in the house where the base station would not lose contact with the monitoring company. Even in that spot, and not moved in more than a year, it still loses signal from time to time. This requires removing the power and batteries from the base station in order to perform a 'hard reset' and get it talking to the alarm monitoring company once again. We have done this maybe 4 times in the last year. The issue isn't so much having to do a reset, but that it's an easy message to miss on your keypad when arming the alarm that although the alarm is ON, it is not currently being monitored. The siren will still sound if someone trips a sensor, however the police will not be notified. 2) Occasionally the keypads 'lock up' and don't seem to send a signal to the base station for disarming the alarm. On a few occasions we have disarmed the alarm (or thought we did) only to hear the keypad on the opposite side of the house beeping, like the base station didn't get the signal. This isn't a big deal as long as you are careful and make certain that your alarm is actually disarmed. We verify this using the text message option for any change in alarm status. Normally a few seconds after the alarm is armed or disarmed we will receive a text message from SimpliSafe about the change in status. 3) The batteries do not last as long as advertised. One entry sensor, the base station's rechargeable batteries, and both keypads have required batteries in the last year; well ahead of when I expected to replace them. It's a small expense and inconvenience, but it's definitely worth mentioning. Overall, an outstanding experience at a great price through Angie's List. Highly recommend. Have had family members purchase and install the alarm with similar results.