When talking to a safe dealer awhile back he showed me mechanical and electronic lock mechanisms from different safes and explained that there’s cheap versions of both and good versions of both. I think if you get a quality brand and spend the money either is probably going to be plenty good and reliable. I like the convenience of a electronic safe and have had a couple for several years without issue. I figure if all else fails, really most gun “safes” unless you spend serious money are really sheet metal cabinets with heavy doors and easily broke into one way or another, the YouTube videos on such things are pretty eye opening and unfortunately show how vulnerable they can be unless you really invest in a real safe.