I really like that it's simple to use - no need to have an IT department or someone who knows how computers work behind your back! It works great when we're working offline (we travel often). We've had issues in certain countries where VPN access isn't available but this hasn't been too problematic as far as our needs go since everything syncs up fine even if there aren't any internet connections. My only complaint would be about the pricing; they charge extra fees at times just because their servers were busy rather than charging us per gigabyte stored/transferred. But otherwise so far, not much has gone wrong and all files sync perfectly between devices which makes life easier for me especially during my travels when i'm away from home without WiFi.