Diablo 3 beta questions

Long story short, I grew up playing starcraft and later diablo 2:LoD and I'm beyond stoked for D3. After not getting a beta key I stopped following for a bit, and just now learned about "renting keys".

So first question, how is the game? Awesome? And where can i download the client and rent some keys?

Edit: I don't know why I'm getting downvoted, just asking some questions.