The lounges provide you with anything you'll need as far as Internet, food, drinks, and booze. 9.5 does seem like a long time, but lounge access will be priceless, especially compared to all the other people outside who have to sit in a hard chair in a noisy terminal. Not sure if you're an experienced Euorpean traveler or not, but one thing to look out for is that they do NOT announce what gate your flight leaves from until about 40 minutes ahead of time. And sometimes, they won't announce the gate until 15 minutes ahead. That means you may literally have to run to your gate. As an American, it seems impossible to me that I have 9 hours to kill, but then I still have to run to my gate. But that is a strong possibility in Europe. Especially at LHR. YOu simply can't go sit by your gate, because they don't tell you the gate.