Its not as good as it was on launch. However if you have friends and don't care for $20 then go for it, but me personally am very disappointed by the changes they have brought upon the game through updates.
If I had the option I wouldn't buy it, I would just get Socom 4. Or anything else, but if you did like the demo you may like it and the community although its not as big as I would have liked is still there.