All but one of my safes have had the combination dial. The digital safe was not satisfactory for me.
I recently needed another and bought a Cannon, 12 gun with two shelves. With a small amount of reworking the interior, it now hold 18 long guns and has 20 handguns inside with room for more. Got it on sale for $400. Good fire rating but needed help in bringing it home and setting it up. I would have bought a larger safe since it will be my last but at my age, I doubt I buy too many more guns and will likely sell off some before long.
By all means, bolt any safe to the floor.