In addition, automated suspensions are not run on the premium servers. Should you be found going over your resource limit, you will be contacted and given time to correct the problem before the site gets suspended.
You'll also notice the premium servers have speeds of up to 100x faster than free servers due to the low number of users and virtually 0 people trying to abuse the service (people abusing the service is the sole cause of slowness on the free servers, outside of server maintenance which is announced in advance here). Add that to a 99.9% uptime guarantee and a slew of additional features, and premium is really solid.
If you decide to purchase premium, you will need to open a ticket in your client area (
https://clients.x10hosting.com -- you'll get the login details after you sign up) to request the manual transfer. Note that our staff can only transfer from free to premium. If you decide later to go back to free, you will need to transfer it on your own.