Not everyone is the same, but I've always been a sticker for descriptions that make sense and are logically consistent.

If your description describes you in wizard garb while you're wearing nothing but plate armor, eh. If your description has you standing, smiling and calmly acknowledging me while you're dying in battle, eh. And so on.

A lot of that is addressed by the helpfile(s) and Academy texts.

I've also never been a huge fan of the "You also notice that..." end of description gimmick. I think it tends to detract from the narrative of a quality description. I don't hold that one against people, though.