My sister is an ENTJ. Very charismatic, fun, tongue-in-cheek, and entertaining to be around when she's in a good mood. A brat princess.
Tyrannical, horribly insensitive, cruel, SCARY and a huge B when in a bad mood.
Generally very extravagant, confident, strong, opinionated, eloquent, well dressed, conceited, and witty. She's also kinda bad with money, pretty messy, and REALLY, REALLY lazy with house chores.
Most people think she's drop dead gorgeous (and she is) but most will also agree that she's also terribly high maintenance and hard to be around for extended periods of time. People who truly get along with my sister are usually smart, confident, eloquent, easy going but picky in some way, generous, logical, and charming.
The advice she gives to me (when not riddled with sarcasm, disdain, or disparagement) is always sound. Makes me look at things in a more logical perspective.
We have a love/hate relationship. Either we get along or we don't. Absence makes us fonder of each other. Living together is a big fat no (more so on my part, she says she wouldn't mind living with me again). I like how I can be blunt or mean with her and she doesn't get mad or offended at all.