ThinLinc & Hardware Use - What is your experience?

Some time ago @aaron shared a knowledge base article about hardware requirements for a ThinLinc server.

As suggested in the article, the best way to estimate hardware usage is through a proof of concept project, testing with real users.

From time to time, people ask for some references to get a rough estimation of hardware use.

The purpose of this post is to ask the community to share what is your experience with hardware use for the ThinLinc server and how your use case looks like. Can you share some information here?