Contrary to the other reviewers experience, I've had no issues with downtime. In fact, as of today, my VM has been up 97 days!

These guys pump out features like no one's business. Take a look at their very active changelog: https://koding.com/Activity/Announcement/changelog

The community aspect is super awesome and they have a very engaged community. Overall, I like the value that I am getting for the money that I am paying them ($9/month).

Highly recommended.