Is Playstation Plus Worth It? Do You Have It?

I was wondering if it's worth it because I have like 20 bucks and yea the three month membership cost like 18 bucks. So is it worth it??

P.S I'm not a hardcore gamer, I may get on once in a while, I don't know if that helps.

Thanks.

Suggestion:

Well i have it, and i would say hold off until some really good updates are released. Right now there's nothing really worth playing except Wipeout HD