The game has some MAJOR technical flaws, but they are still working on them, and that aside it's a great tactical game.
The community is full of teamplay-eager players and several clans. There are little to no people fooling around, so you can expect a solid community experience.
The game is extremely well balanced, with all weapons suiting their purpose without overpowering the others.
The gameplay is intuitive and tactical, as you'd expect, and microphones are everywhere: The boxed version comes with a mic, and even those who download it often get a headset regardless.
The customization is excellent: You get to customize your character's facial appearance, outfit, accessories, weapons and equipment. All maps have both day and night versions, with varying gameplay types, from capturing strategic locations to rescuing hostages or blowing up someone's weapon cache. =P
The clan system is equally well developed: The ranking system allows the clan leader to promote his members as his clan evolves, by gaining Officer Points. You can even customize your clan's insignia, motto and change your name and tag when you feel you're tired of them.
Management is easy and feels just right. Your clan rank and insignia will then appear on your actual character during play, and by creating a clan you choose from 5 different special forces from around the world, each with their own characteristic weapon and armor, plus some headgears, that allow you to customize your commando further depending on your clans allegiance.
So why is this game constantly getting bad or "reasonable" reviews? Well, you see...the game is, from a technical point of view, flawed. It feels like a beta: the servers go down every once in a while for maintenance, it's getting patched all the time and sometimes things go wrong. For instance, until recently, the statistics weren't recording properly.
There are some features that aren't in the game (yet), such as rolling while prone or diving while running. These details aren't essencial, but they were advertised, and as such should be in the so called "final" version.
Basically, you are paying for a game that isn't finished, BUT not abandoned - they are still developing it and dealing with these issues. Essencially, you are paying for a game still being worked on. So is it worth it? Heh, well, if you love tactical gaming and teamwork, and don't mind some minor annoyances more often than usual, this is THE game for you, as gameplay wise it is refined to perfection. But if you feel like you can't stand a game that looks like it got released too early you should steer clear or consider waiting.
Overall, the best online game ever for fans of the SOCOM series and tactical junkies, dragged down by it's unfinished state( For the time being ).
I recommend it.