David was able to come by on the same day I contacted him. Friendly and professional service. David showed up on time, very straightforward. He tried the best reviving the panel left by ADT, unfortunately main board had to be replaced, as ADT locks your equipment and does not release even if you purchased the system. Due to some technical challenges with the equipment follow up visit was required. The follow up visit, David was as well on time and completed the task promptly. He re-programmed, installed additional equipment and tested the system. Now system works with another provider with no issues.