Your server will be your server, you won't be sharing with anyone else and you will have full control over what happens and when. You can setup as many or as few websites on your server as you like, or maybe just host a database? The choice is yours.
While you worry about what is going on the server we will make sure it is running quickly and efficiently. Your server will be hosted on our virtualised cloud platform which allows us to run your server in multiple locations on several physical servers. If one of our machines goes down, your site will instantly start running from one of several backup locations and nobody will notice the difference.