The first time I came to Madrid to attend the exhibition, the exhibition center is not far from the airport, but there is still a certain distance to drive from the city centre. It's really convenient to have subway access around. There are direct drinking water in the venue, but caterers are not very common. Unless you have a ticket for a big meal, it will be a little difficult to eat and there are few choices.
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The first time I came to Madrid to attend the exhibition, the exhibition center is not far from the airport, but there is still a certain distance to drive from the city centre. It's really convenient to have subway access around. There are direct drinking water in the venue, but caterers are not very common. Unless you have a ticket for a big meal, it will be a little difficult to eat and there are few choices.