The part ,once you get on your train was great. We had the large reserved seat on the AVE high…read morespeed train.
Atocha station was confusing and not well signed for folks unfamiliar. I find this odd for a country that lives and dies with tourism. People ask the security guards questions ., because there is no one else to ask. Renfe are long distance trains, and Renfe Cercanias is suburban light rail, like the one that comes from the airport. Atocha has a differnt name for Renfe and Renfe Cercania, but it's a differnt part of the same station. We asked a guard about luggage lockers and were informed none were available. True but misleading, none in the station but within a block or two several self service locker services are available. Big surprise at security x-ray , we had two knives: a serrated one for bread and another for cheese, fruit etc. All baggage is gets screened and there is no 'checked bags" . As they were much longer than 6 cms, , out they went.
Oh, and the website was unusable, had to download the app to buy tickets.