You're going to love your aft balcony. It's about 4 time larger that a regular balcony. On the voyager class ships the support steel extends out and spoils the view a bit. Take a look at the back of the Explorer
The only other con is the walk from the elevator the your cabin. We alway try to book an aft cabin. Here is a picture of our aft cabin on the Jewel of the seas. http://lnk.in/3fcx
The Jewel is a Radiance class ship.
Hope you have a great cruise!