Hah, fun! Visited this a few years back. It's in great condition, particularly memorable things were the bullet holes (all highlighted in red paint) and the intro video[0], which is worth watching if only to experience the extremely distinct North Korean English accent. [0]: https://www.youtube.com/watch?v=95qtd2Mwnpg
How were you able to visit it, honest question? As an American myself, I wouldn't dare set foot in that country. Was a visit there an easy experience? Would you go back?
I spent 2 semesters teaching computer science at PUST and it was a wonderful experience. You really get to know the locals (both students and staff) much better than on a short tourist trip. Some highlights include teaching Dijkstra's algorithm by showing them google maps images of Pyongyang (which they hadn't seen from space before), talking about Snowden and how he used encryption to hide from the NSA, and having North Korean citizens contribute to open source machine learning projects (vowpal wabbit and mlpack). All the students I met with were also surprisingly well informed about both events in the US and American history.
You also get to do as much touristy stuff as you'd like. Two highlights for me were, visiting the Pueblo and the subway system. As a former naval nuclear officer, it was quite surreal to visit these places. The subway system is one of the few places in the world that US nuclear weapons cannot effectively target because it is buried so far underground (>100m). You have to spend about 5 minutes riding the longest escalator I've ever seen to get from the surface to the trains. It's a daily reminder to North Korean citizens that they've been targeted by US nuclear weapons for decades.
Educational exchanges have a long history of improving relations between countries, and so I'm a huge advocate for the PUST exchanges. Unfortunately, I had to stop going because President Trump no longer allows Americans to visit North Korea. If any non-Americans are interested in going, however, shoot me an email (mike@izbicki.me) and I'm happy to chat more with you about the experience.