Pros:

•  100% Flash client means no software to install - supports Windows, Macs and Linux.
• Get $10 FREE just for opening an account - no deposit required!
• If you do make a deposit, you get a 200% bonus upto $300.
• Hourly freeroll tournaments for all players.
• US players accepted!

Cons:

• Low player numbers
• Flash client still has a few bugs
• Server lag at peak times

Conclusion:

Worth joining for the free $10.

 Click here to signup at Pitbull Poker 

You can also get a no deposit $10 welcome gift at Victor Chandler Poker - no open to US players though unfortunately.