Hi John S.,
This is a shared hosting, so they use several servers and the client request is routed to the server best able to service it which should ensure a good performance in the context of the shared environment
"Not only is your IP address load balanced at the IP level for redundancy, but another layer of load balancing then abstracts the request to a hostname only, allowing it to be active in multiple locations in the server farm. Microsoft's Application Request Routing module means that you can dynamically add or subtract the number of servers the application-aware layer of load balancing will simultaneously use.
So if you have a website based on Sitefinity with NLB you should be able to set up this on the host. We have tested with the standard Microsoft implementation for NLB with one storage and sever IIS servers and I am not sure if there are any specifications that your host requires.
Also the plan you are going to use is with 100 MB database storage which is not enough if this is a medium website.
All the best,
the Telerik team