Going from memory here (and it's not great at my age), I think the biggest downside to the Cisco Cloud was the EULA, whereby Cisco have the right to monitor all your router traffic.
This is why people are downgrading to an older firmware. There was a lot of anti Cisco outpourings at the time it was discovered.
See this link;
http://www.digitaltrends.com/computi...cloud-service/