The ports and excursions were wonderful, and provided experiences we will cherish forever. Unfortunately, the ship was a travesty of disrepair and old age. The interior spaces smelled of raw sewage through most of the voyage (likely because toilets weren't working), the furniture was broken, and the structure of the ship was generally not well cared for.
Finally, the expedition staff was disappointing at their best, and downright confrontational at their worst. They didn't know the geography, biology, culture, or history of the areas they were leading us to, purposefully avoided interacting with guests, and continuously complained about having to do their jobs.