How is living in Gunpo, Gyeonggi-do?

A friend of mine is moving to Gunpo, Gyeonggi-do.
How is Gunpo as a place to live?
I'm curious about housing prices, accessibility to Seoul, parks and walking/running facilities, and public transportation convenience.
I am also planning to move out of Seoul, so if Gunpo is a good place to live, I am considering moving there as well.