I have an American Security safe, one of the best firearm related purchases I ever made. The door is removable, which makes it a lot easier to move down a flight of stairs. it also has a dial lock, which I find to be less prone to failure than a digital.
If I were to do it again, I'd make the following improvements BEFORE I installed the safe: I'd paint the interior flat white or egg shell blue, install lights and a golden rod and put the safe on 1" risers. JMHO.