Only used this 1 night before I was promoted to write a review, but wake up 1 was amazing! I actually woke up peacefully and stayed awake. Will definitely continue using the app for now, depending on how much is costs (it hasn’t said anything about payment yet so we’ll see).....
UPDATE: Have used the app numerous times, and like others, I can definitely sleep through it if I choose to, but I would take this slower/more gentle wake up over a loud blaring one any day. And let’s face it, no app is going to MAKE us get up, that’s our own will, hah, but this app has been the most helpful for me!