Keniisu
YouTuber | Modder
While the idea itself is nice, the UB isn't exactly appropriate for Rome... At least not as an opera house replacement. Its from an entirely different period and it grants bonuses during peace, contrary to the war based UA and UU (speaking of which, city attacks count as ranged, no need to mention that).
The design is based on Nero's focus on the Arts of the Roman people and his promotion of helping the lesser. The Unique Building does seem a little contradictory so I will fix that...