How did this Boston Seaport high-rise condo development flop?

Here’s an interesting article I just read:

Jon Cronin’s first foray into luxury condo development got off to a promising start.

In 2015, the restaurateur unveiled plans for a 22-story tower on the site of his Whiskey Priest and Atlantic Beer Garden bars. The $260 million project, later branded the St. Regis Residences, boasted a prime Seaport waterfront location, striking design, and a strong Boston economy.

Nearly three years after opening, 40 percent of its 114 units remain unsold. Cronin is poised to hand the keys to his mortgage lender, Cottonwood Group.

Construction delays, interior design missteps, and aggressive pricing turned what should have been a home run into one of the city’s biggest real estate flops in years.