Bought the August pro3. Had a weird lock so called the number. Answered right away and new part arrived in 2 days. Installed it so easily. Bought the Bluetooth/wifi connect a couple weeks later because I feel like unlocking your door for cleaners or dog walkers is what it’s designed for. Also love piece of mind knowing my door is locked and people don’t lose my house keys anymore. 
Has saved me multiple times already when I’ve forgotten my house key too. All in all a life saver and fantastic purchase. Worth every penny in my opinion.