Lounge access is a definite downgrade
My first trip out of T3 was a nasty surprise in terms of lounge access. In comparison to the Skyteam lounge in T4, the No 1 lounge in T3 is small, crowded, and has inferior food options.
Re food, the hot items are table service rather than buffet. Table service works at the Revivals lounge (which I used when I arrived and was very nice), but when you're trying to catch a flight you can't afford to sit and wait to be noticed.
Plus they had the lunch items laid out at 10:30 so if you were looking for breakfast you were SOL.
Ugh, take me back to T4.