The problem is that this shows you how long it takes to get to a single place, rather than showing a map visualization like this site. I've often really wanted this on StreetEasy especially. I don't want to know how long it takes just to get to work, I want to know how long it takes to every neighborhood I regularly travel to.
Agree it could be better. I recently moved and wanted to be close to work but also close to a few friends. It would be cool if you could put in two (or more) locations and it would map out areas. I'm sure some ones would have popped up I didnt consider.