I bought a biometric (fingerprint) safe thinking it would be faster to access than a traditional lock and key or combination safe. Also, I wouldn't have to worry about my kids finding the key or worry about it getting misplaced. In theory it makes sense, but I'm disappointed. Frequently, the sensor fails to authenticate me, sometimes multiple times. the extra 20 - 30 seconds it takes to wipe the glass, lick the rest of the dinner of my hand, and try again can be a long time in a home defense situation. I still like the idea of a small biometric safe in the drawer of my nightstand, but if I had to do it over again, I would put some time into researching which mechanisms and which manufacturers are most reliable. Having made the mistake of going cheap, I'll advise you spend to something that works like it should every time.
I do NOT recommend: http://www.gunvault.com/