I hated using calendars.

I had a bad rep for keeping up with events dates, reminders, and/or notes. Whether I was physically writing it in a notebook, using the app that came with iPhone, nothing worked as flawlessly and was more user friendly than Google Calendars. Im so much more attentive to every detail of every event of my life. Seriously became one of the most commonly used apps, of the many used apps on my iPhone. Highly recommended if you had a bad habit like I did. I love this app!

B-boy E. about Google Calendar: Get Organized, v2.2.1