Had to use them the other night. I have a problem with locking the bottom lock as soon as I walk out of the door. Went out to check the mail and oops I did it again Brittany spears. Luckily I had my cell phone on me and they were came up when I googled em. They had good ratings so I called up and they told me give it 30 minutes. 40 minutes later their tech arrived and bam I was back inside poorer and feeling dumber than ever. Next time I'm not reaching for that lock