Should I have Skyrim Beta Update on, would that enhance my first experience or could it destroy it, perhaps even ruin my future save?
I think my question is valid as the update might have been tested for sometime now? I don't know.

update everything, best lag free experience. it also makes the game slightly harder to exploit...

So your saying that using the Beta Patch won't ruin any future saves or gameplay?
I'm just making sure that is what you are saying.