Terry --

I have Evidentia but haven't used it extensively -- I have been on a 'hunting and gathering' phase and need to stop and analyze what I've found and get it into Family Historian.  

Evidentia is good for making you slow down and really think about what information you might be able to get out of a document.  Since this makes many people cry "that's too much work!", I often advise people to try it with their most difficult cases first. But from Ed T (the developer) has said in his video classes, he wrote the program to help him organize all of his genealogy work.  

To wring the most data out of an English census document, I would first find a copy of the census enumerator's instructions. If I remember correctly, those are available on histpop.org.  Reading population studies and census reports for the area may also alert you to subtleties you might have missed, which you could then incorporate into your notes in Evidentia or Family Historian or both.

Ed's YouTube channel is at  https://www.youtube.com/channel/UCYKbwE4VYrXm--D2FF7hZ7Q 

He also has a Facebook presence and enjoys keeping in touch with his users and getting feedback on the program.