Run. Run far away. Now.
I hesitate to even write this because it's categorized as a recommendation and this is the farthest thing from that. (*edit: Valve changed this as of 11/25/13 recommendations are now "reviews" and you can thumbs up or down)
In all my years of gaming and all the games I've played I can say that this is the absolute worst launch of a game I've ever experienced. An abysmal festering trainwreck that grants more entertainment value from reading angry posts in the forum than it does from the actual game.
It looks like crap, plays like ♥♥♥ and has more bugs than a Louisiana swamp. To call it a beta would be dishonest, that it's being sold as a finished product is really fraud. I'd say pre-alpha is the most accurate way to describe the state of this game.
If all of that doesn't scare you off then please at very least go browse the community forums first before you go to buy this game and see what the general consensus is about the state of the game by owners. I won't even say players because hardly anyone can even play it for any significant length of time.
They are issuing patches literally on a daily basis currently but it still has a long way to go and I don't have the most faith in these developers to ultimately end up with a good product at some point down the road.
This game is a textbook example of why none of us should be pre-ordering or buying released games without first checking to see what the general community consensus is. It's extremely obvious that no one at Valve even booted up the game to play for 10 seconds and the developers admit it was released unfinished. Yet here it still sits in the store being sold as a finished product.
The old Roman concept of Caveat Emptor holds very true here.