Love it!
With my first child, I wrote everything down on a paper, often forgetting this and that. With my second, I started using this app, and I just love it. Every time I want to write down something important, I can just add a note, there are many milestones included (and you can check if your child is advanced or behind compared to his peers). I loved marking down feedings, diaper changes and sleep - never wondering, how much time has it passed since the last one. There are also many many other fun features available. But the most important thing: the support. I had problems with my account (forgetting the user name and password - mommy brain), and I got really kind reply and detailed instructions, and a nice reassuring that nothing got lost - because it was backed up in the cloud. Did I mention that you can create a lovely yearbook and export it - free of charge!