I don't want to say a safe is a safe, but a safe is a barrier. Some are absolutely better barriers than others.
I am not a safe construction expert. So maybe that is why I purchased a Cannon safe maybe ten years ago. It was a good price and it was a good size.
A friend of mine had a very inexpensive safe, sheet metal almost the thickness of what is used in a medicine cabinet. It had to be bolted to a wall stud, because it was light enough to carry off. And it had a key lock. But that minimum security was enough that a burglar, who was interested in a quick in and out job, did not get inside the safe and steal the LC Smith shotgun that was in there.
Another gentleman, who I only heard on the radio, bought a very expensive safe, and put very expensive items in it. A crew of burglars came, got tools from his garage, and using sledge hammers and crow bars, beat the door open. Apparently took them a while, but there is nothing made by man that cannot be unmade by man.
A safe provides a barrier, and I think any safe is better than no safe.
I do wish there was more information in what to look for in a safe, maybe there were better options when I purchased my Cannon
I do not recommend the electronic locks. I live in an area where there is a lot Government safes. And about seven years ago they all went electronic locks. I talked to local locksmiths who every couple of days were drilling open Government safes because the electronic lock failed. I asked them how often the older S&G mechanical locks
http://www.sargentandgreenleaf.com/prod_mechcombo.php failed. That brought out a lot of head scratching. Well it had been a while, maybe one a month, maybe less.
Basically the mechanical locks are highly reliable compared to the electronic locks. Maybe the electronic locks have improved, but considering the state of perfection in mechanical locks, I don’t see a reason to change.