It's more convenient, quicker and safer. Remote opening of your garage door means you can enter your property quicker, without getting out of your car. You no longer have to park in the dark as the motor system incorporates a courtesy light. The motor stops if it encounters an obstacle and exerts a counter-force if anyone tries to force it open. Lastly, smooth and consistent operation means your garage door will last longer.

Certainly. All garage doors, new or old, can be upgraded for home automation with a Somfy power unit. 

In both garage door categories - roller or Up & Over - Somfy has a solution to enable enrty during a power cut. Roller garage doors powered by Somfy motors incorperate a over-ride facility that allow you to manually crank the door open and closed. The Somfy motor for Up & Over doors (canopy, retractable and sectional) has a mechanical release mechanism, but also has the provision for adding a rechargeable back-up battery which can open and close the door 10 times in 24 hours.