I too have had issues with connectivity with Rackspace. Also anecdotally I've heard that the main recommended solution by the article in the OP, hetzner, is one that crashed non stop for someone in the past.

You just can't beat AWS right now for reliability, feature set and speed. We started using them recently and they are a tiny bit more expensive. But it's the difference between fresh air and breathing carbon monoxide.

At least so far.