I have AMSEC with electronic lock.

Be sure you understand the difference between a residential security container and a "safe." There are codified differences.

I concur to purchase more space than you need today.

Humidity of the space in which you plan to locate the safe is of consideration.

Make sure you tell them what level of your house you want the safe. I was in a store in Colorado Springs and was told their weight limit to deliver into a basement was 700 pounds.