Arrived at the Lounge to chaos. A large crowd had just arrived with no pre booked tickets. 15 minutes later we got in. Found the evening choices of food extremely poor, this could be improved with finger sandwiches. Had to keep getting up to check our flight status as there is only one flight information board. My main complaint is that it was so hot in there, so hot my feet swelled and I felt I was suffercating. You would not expect this in late December. In the end we left as I couldn't stand it in there any more. Will not be returning to this lounge at Heathrow T3