You can alter your notifications so that you're not getting them as often, but the only feature that I actually appreciate is when Meekan will send you a notification letting you know who has responded to your calendar invite. That can be helpful if you're juggling a lot and might not realize who all you're waiting on a response from.
I just don't see how it's useful and there are a ton of unnecessary notifications.
Determine whether you need additional notifications for calendar events before implementing this tool.
I don't see any benefits.