I like that it has all of my contacts in one place, so there is no need for me go searching through emails or different apps when trying find someone's contact info! There are some bugs with using this app but they seem pretty minor at best (not enough screen space).
Some things don't sync as well between devices which can be frustrating if you're offline/in meetings etc., however once synced everything works perfectly fine again without any issues whatsoever - perfect customer service :)…