2019 NUIn experiences in Italy or Prague

Just accepted to NUIn for Fall 2020. Trying to decide between Italy, Prague or Sidney, Australia. Any recent experiences at any of these locations from this past Fall '19? How big are the groups in each country? Did any of these locations fill up fast last year? Any comments about social experiences in any of these cities? Looking forward to reading some stories from last year.

Not sure if any participants are active here on CC but the following are videos submitted by past participants:

Rome
https://www.youtube.com/results?search_query=nu+in+italy
Prague
https://www.youtube.com/results?search_query=nu+in+prague