He's not a hero, that's for sure. His attitude stinks, and though he saves people and secretly has a heart of gold, he's too busy quipping his way through this movie to bother with good vs bad distinctions.
I knew nothing about the character going in, and feared this would be The Punisher with humorous naughty bits.
Luckily, though heads fly, swords slash, and slow-mo guns do their damage, there isn't any lingering on gore. It's all played for laughs.
Deadpool is sassy, irreverent, and the best wise cracking (not hero) in ages. Highly recommended.