Love the actual Hatch device, and I'd give that a 5 star rating easily. However, the app is absolutely horrible to use. Crashes and gives network errors regularly, slow to boot, slow to function. If you accidentally swipe your alarms (which is way too easy to do), it deletes them and there's no pop up notification. Less on a usability note, it'd be nice to have a gradual sunset setting akin to the gradual sunrise setting, as well as more white light options. Surprised there's no 5000k or 6500k.