My wife gave me a Minivault deluxe for my bedstand. Initially, I didn't think I would care for it much but didn't have much choice as our daughter was learning how to walk, so simply keeping a pistol in a drawer was no longer a good idea.
I really like this thing. I don't have it plugged in, instead relying on the internal batteries. It's rated to last well over a year on a set of AAs, so I replace them every 10 months to be safe.
If the box is tampered with (moved around, failed entries, etc), the box has a method of informing the user. This is nice to know if you have older children. It's also portable if not bolted down, albeit not exactly what I would call "portable" due to its heft. I have take the unit to Myrtle Beach several times during vacations without much of a problem.
Mine doesn't have the biometric reader, but I can get into it within 2 seconds all the same.
If it fits your requirements, I would highly recommend it.