The theatre itself is worth a visit, the trouble t...

The theatre itself is worth a visit, the trouble to get a ticket is not.
We went for a late afternoon concert for children. Despite the existence of a web portal for reservations, I dare you actually succeed buying a ticket. After a lengthy input of all your credit card data, verification codes and more, you will be directed to a page that tells you that you need to make some funky identification. As if getting money from you was not enough to entitle you to a simple entrance ticket.
We went instead to the ticket shop the day of the concert. In the morning, to make sure we could get one of the last tickets available.
The ticket shop does not open until 12.
At 12 a crowd builds up in the ticket shop, and it is not until 12:15 that someone tells us that the ticket counter is actually downstairs in another room.
There the clerk still insists we need to "register", that is, we need to give our private data to buy a ticket. People get nervous and eventually we get our ticket. In the chaos we get two normal entrances instead of a normal and a child. At that point it's too late.
The concert turns out to be nice, but the whole experience is appalling to say the least.