Im definitely not a 10, and in fact didn't come into my own until I was in my early 20s, so I can pinpoint exactly when things changed. I'd definitely consider myself attractive though, as I can't make it a week without someone giving me a reminder.

The best thing is that people are naturally more open to talk, and they inevitably open up and tell you personal things about themselves. Women are very receptive to you and often will openly flirt, even if you're not doing anything to prompt it.

Theres no shortage of people, both women and men throwing you compliments. They'll also come up with nicknames for you like prettyboy which can get annoying.

As far as negatives, people / coworkers assume that anyone of the opposite sex that you befriend is having a sexual relationship with you. Not exactly a good look if you're in a relationship... also, some men are very competitive and will act hostile towards you for no reason if they see you as a threat.

Theres no doubt in my mind though, life is far easier if you're attractive.