I don't believe these units are selling very quickly, from what I've heard on the street. This might not be surprising, considering that all 50 start at $1.5 million and up. However, they purposely built the units large - each has over 1,800 square feet, I believe. Yeah, that block of Columbus is not prime real estate, not in the South End, not in the Back Bay, but I gotta believe that a family of three/four with a live-in maid or nanny would jump at the chance. The layouts are pretty cool. It's a one-of-a-kind development, at least here in Boston.