I'll try to remember to update here. We've had these on a lot of airbnb places we've stayed so I'm figuring they hold up well. Schlage has a good reputation and reviews. I'm leery of things that can go wrong with battery operated and wifi stuff but if both of those fail, there's always a standard key to use.
My parents have used keyless entries for over 20 years. I really dislike them and find them to be a hassle, especially if they automatically lock after x number of seconds, as some do. They always seem like a good idea and then I visit my parents and remember how they can be.
Fireplace surround. Found a lovely slab of soapstone that will cost around $3600 not including fabrication; found a tile with a pattern that kind of mimics flames and the cost is the same as for the soapstone. I have a few alternatives that are ok but.... Maybe if I give DH the fluttery eyelash treatment....