I work in a busy cash office in a busy retail grocery store. A lot of money passes through our office and while the bulk of it is deposited every day, there are still many items that need to be locked up securely in a safe. The safe we use is by American Standard and I like it a lot. It is very roomy, which is real important. We have an upper and a lower compartment, and we manage to use all the space all the time.
The combination has always worked flawlessly for me. Sometimes if someone new is given access to the combination, it can take a while for them to get the hang of it. Once you get it, though, it's the same every time so you kind of get the pattern after while without even thinking about it.
The upper level of the safe has two smaller compartments in it. One has a combination lock, and the other is a two-key lock. One of the keys for the two-key compartment is held by our armored car service and one is held by us. It takes both to open the compartment for obvious security reasons.
The safe has a UL (United Laboratories) sticker on it stating that it is tool resistant. United Laboratories sets safety standards for products and if, after tested by UL, they find it is compliant to the standards, it is certified with a sticker.
Our safe has its own serial number, too. I guess that's in case its ever stolen (?!) It would take a tank to steal the beast! I've worked in a few stores for my company over the years, and this has been the safe I've found easiest to work with. So, if your company needs a safe, I recommend that you look into American Standard.