Hi, new here to this site. I have had a Speed Vault attached to the side of my night stand for about a year now and am very satisfied w/it. It is the SV500. I have little grandkids in a out so I silenced the buttons cause that will attract kids like a magnet. Very easy to mute. When the kids are in the room they don't even notice it.
So far the only problems I noticed is if you leave the drop-down lid open(it has a interior light that turns on when the vault is open), it will drain the battery so much that your key punch code won't work. I programed a easy 4 digit code and it is very quick to access.