What I fail to see is the storage areas on the floorplans. Where does 1-2 years worth of food and water go?
A blast where, exactly? Directly overhead?
My house is certified to withstand a 20k nuclear blast too, as long as that blast occurs in Iran.
If the internet and those solar cells are still working, you can probably drive down to the supermarket for food. It may have its own wells.
They need to market to New Yorkers who might consider it a luxury apartment with two bedrooms, a large bathroom, kitchen, dining and living rooms crammed into 600 sq.ft.