I have a danalock and I cant fault it. Only downside is that to get any additional keys cut is ridiculously expensive due to the specialist high security cylinder. Reliable, has a key override, integrates well but equally has a good app of it's own, super easy to fit, great battery life, looks like a standard key turn cylinder from the outside and doesnt look bad on the inside either. I would 100% recommend the danalock (or ultion, same product) my experience working in the industry has not been good feedback for end users on the yale smart locks. I would particularly make sure you get one with a key override whatever brand you go for.