I returned first unit because it worked a while installing and half way thru installation it would not work. Replacement works ok but I have two issues: 1. It is very noisy 2. Most importantly, there is a bit of resistance in the opening and I am afraid the motor will not last a long time, although the door is accessed infrequently. This may be related to my application but unlikely.

I purchase this door opener for my disabled father who uses scooters and powerchairs to get around. I successfully installed the DM-100 (with magnetic lock) on the main entrance door of a ranch home. The magnetic lock provides security during day hours while we use a dead bolt at night. The only modification I had to make was to the bottom door rubber weather strip/sweeper. If the door cannot close completely with minimal effort, you may have to make some minor modifications to weatherstripping. All in all, we''re very happy with the system and would recommend it to anyone looking for an automatic swing door opener. Oh, almost forgot......Smarthome has incredible customer service and tech support. 5 Stars! Thank you to Smarthome for such excellent products and service.

DIRECTIONS COULD HAVE BEEN BETTER --- DIRECTIONS FOR THE OPENER TO LEARN THE CODE WAS IN THE FRONT PART OF THE DIRECTIONS INSTEAD OF WHERE IT SHOULD BE IN THE NATURAL FLOW OF INSTALLING. YOUR CUSTOMER SERVICE GAL WAS VERY KNOWLEDGABLE AND GOT US STRAIGHT