Great airport in general. Outstanding public and p...

Great airport in general. Outstanding public and private transport for going to Madrid. Connections between terminal also good (buses every 5 minutes and free).
If you go to T4 you will have a awesome experience because is the newer terminal. It has a lot of shops, people willing to help you and, places to relax and children to play.
If you go to T1, T2 or T3 you will have a good experience too but buildings are more modest.