A nice museum, but horribly expensive for the time...

A nice museum, but horribly expensive for the time spent on site, for 3, not far from 70 for a small hour on site. The new developments are rather successful, a pity that there is more interaction Casa de Papel.
Especially, the day of our visit, opening at 9:30, technical problem but good no information on how long to wait. Already more than 30 minutes to do the crane ... we arrive early to enjoy, in the end a queue of hell and school groups that ruined our visit.
Apart from letting go of the money for the entrances, no consideration from the visitors. A problem can happen either. But we warn people who wait like ...., at least the pill goes better and we have the choice to cancel the visit without waiting for small suspense timing. 1 star because not less.
Last time.