Oh come on. It's a concrete box. There's no elegance to the Viv.
It's not the ugliest arena in the NBA but it's nowhere near the top. It's bested by arenas in Portland, Sacramento, Dallas, Brooklyn, Orlando, Toronto, Indiana, Atlanta, Chicago and probably soon to be Detroit, too. I'd say the Viv is better looking, in terms of exterior, than Golden State, New Orleans, Oklahoma City, Minnesota, Milwaukee and Boston, tho.
Definitely not one of the better looking arenas in the NBA and I'm guessing most sports fans would agree with that take.