I am now using both Pacris and Garage Defender.
Got broken into before Xmas. So got new door on insurance and the thieves tried to come back. But Garage Defender stopped them, they managed to force it a little of the concrete and bend the steel but the more they forced it the more it locked into the garage door.
They must have given up, as I found snapped end of the crow bar forced under the base plat. Must have been using huge force and a massive crow bar.
So recomend the Garage Defender, but because I am a chicken I thought I would go extra safe and put in the Pacris door locks and an alarm.
Check your insurance carefully. I thought I was totally covered, but on my policy the garage counts as an ‘out house’ therefore you only get a allowance up to a limit rather than item by item. So when I borrow a bike I keep it in the house. Or park my car super close to garage door.