I used to love this app. It worked flawlessly for me and it was my go-to calendar app. However, recently I am having trouble where it does not sync anything other than my single Outlook calendar, with my other calendars being visible from my phone, but not having the events also populate on my laptop. This is a huge problem for me and definitely a deal breaker. If this can't be resolved I'll have to start looking elsewhere for a calendar. It still is a nice calendar app, but if you want seemless integration between your phone and your laptop, look elsewhere.