This apartment is a gem. Beautifully laid out and very very comfortable. I only hope it's available for my next visit! Don't hesitate. Go for it. My 7th visit to NYC and easily the most comfortable.
Veronica the host is awesome and made it easy for me to find, with some handy guides (and NYC tip book, which I found brilliant).
Here's the bit you really want to know. 72nd Street / Broadway Subway is a 9 minute walk. The walk is easy and pleasant (as is the area around the apartment). Once at the subway - you have access to the express 2 or 3 service downtown that is ONE stop to Times Square.
Go for it. Worth every dime. You'll walk into the apartment and smile! Enjoy it and look after the place!
Now an idea for when you are there. Out of the apartment walk down 76th until you get to Riverside Drive where you will find a City Bike stand. With $12 you can then hire a bike and cycle all the way down to Battery Park on great safe wee cycle lane that's great fun! if you fancy doing something more interesting than the usual that is. There's also a first class bakers (Levain) 2 minutes from the apartment. Give their bread or cookies a go!. Late night beers in an great Irish Bar? Malachy's Donegal Inn is 5 minutes away.
This place is 5 Stars. Enjoy.