Completely useless. We checked in the web the availability of the trains that we needed to take, three times due to they were these Christmas days. Everything was ok, so we bought go and return. And when we wanted to return home, all the trains were cancelled and they didnt work during the whole day of our return. We needed to buy desesperately tickets for the last bus of the day. No help in the customer helpline because they werent working that day neither. At the next day we called them asking for the refund of the return tickets and they said that we needed to know that in that day the trains would not work. How we would be able to know that?? Such an stupid, useless and completely terrible web. Not use it!