I've just returned from visiting North Korea for 7 days. AMA.
I know there was recently an AMA from a tourist who had also been to the DPRK but I figured some people may be interested in a second.
Here's a photo album as proof http://imgur.com/a/nP9Jy#0 but I can send my visa to the mods if necessary.
Edit: Here's a photo with my username and the date. http://i.imgur.com/1Djbs07.jpg