I also bought a safe from Wal-Mart and I am well satisfied with it. Don't think all the safes at Wal-Mart are the same, they aren't. Sentry Safe manufactures the ones I have seen in the store. There is one safe that is way ahead of the others. The Sentry Executive has hidden hinges, what appears to be a 3/16ths door and 1/8" walls. The main difference aside from the thicker metal used is that the executive safe has 12 active locking bolts, 5 each on the hinge side and the open side and 1 each top and bottom All the others I looked at had 3 on the open side and 1 each top and bottom, none on the hinge side, and the sheet metal looked about 10 guage.
I was worried at first because the safe only weighs 375 pounds, but if it is anchored to the floor with the included hardware I dont think anything short of a torch is going to get inside.
The biggest drawback I found is that it is just a bit too small. If it is configured for both rifle and pistols, the long gun storage is just big enough for 8 of my long guns if I pack them tight.
For the money, I think $475, it is a good value.
You might try other Wally Worlds in your area.