I´m in MAD now, in the lounge. The lounge is the only decent thing about the new T4 (and the airport as a whole) IMO.

T4S is a bit out in the sticks, the walk from the aircraft (even if you´re first off) to the train involves going up too many escalators, and then after you´ve spent god knows how long on the train, you have go back up the escalators again!
The fact there is no tube link at T4 (yet?) is a bit of a pain too, by the time you´ve waited for a bus, got to T123 and got on the train another 15 minutes have passed - minimum.
Basically, there´s far too much walking. Makes the Victor pier seem like a doddle.
Security queues are a tad long too, even if they are kept moving.

The lounge isn´t bad though. Pity I don´t have my camera on me otherwise I´d get some pictures. Now I´m going to have to walk right down to the other end of the lounge to grab something to eat, after walking all the way up here to write this...