It was a really good show.
Compliments Andreas and Karel!
I agree with Thommy that is hard to speak in loud environments at parties.
Next to the list you added yourself, I would suggest a few extra;
-Since most people party late and miss breakfast, it would be nice to get food throughout the day in the lobby (or more choice of food/warm food). Or the restaurant on the 25th/26th could open sooner then 8:30PM maybe.
-Maybe some tapas in the restaurant(s), since we're in Spain
-Some extra staff at the bar during peak hours.