I installed the Halo about a week ago, and it’s been working great. It matches my existing Kwikset hardware and smart key. I was able to easily rekey it and use my existing key. The firmware and app update added some very handy features and took about 10 minutes to complete. The batteries are holding a good charge and I don’t see a need to replace them for a while. This is a great addition to my smart home, and I couldn’t be happier.