It's really a fantastic space, and it was basically empty just a few short years ago.

That said, its model is not necessarily a solution to suburban mall decay, as it was already part of a dense downtown with a growing residential population and a captive workday population that often uses the arcades as a walkway between Euclid and Prospect.

Many malls will never recover as the US simply has too much retail square footage. Along with that, they're not so great with property tax efficiency, where historic main street districts easily outperform them. There's a Strong Towns article out there somewhere about the subject (probably this one: https://www.strongtowns.org/journal/2018/4/23/bon-ton-gone)