This safe has its uses, but it's not the best safe when it comes to size. We received this safe along with a smaller one for our wedding. It has held up well over the years, but we don't get into it much.
This safe is supposed to be used to store bulkier items you want to keep locked up and fire safe. I have found that the walls are so thick that it is hard to fit more than a few medium sized items in it. From the outside it looks large, but the inside is much more compact. I ended up keeping mostly back up copies of my photos on CDs in there. Even then, I had to stack them and it was hard to fit anything else in there.
The safe does not come with any bolts to mount it to a floor or wall. It is light enough that you can pick it up and take it away with no problem. When it comes to this kind of security, it's not that safe.
The locking system is very heavy duty, but I'm sure it would be easy for a thief to pick the lock. If you are just trying to keep kids out of it though, it would be just fine. I have never had to test it in a fire, but it does lock very tightly and has thick walls. I believe it would hold up in a fire wonderfully.