Malbork Castle Review - Worth the Cost?
Entry into Malbork Castle is quite costly, at over 15 USD per adult. You will be required to pay more if you choose to take photos or shoot video while inside the castle walls. In addition, because a visit to Malbork Castle can take 3 hours or more, while in Malbork, you will most likely need to purchase food and beverages.
Guided tours are quite expensive. While guide books for visitors who have not booked a tour are a relative bargain, they are still overpriced.
Malbork Castle Review - Worth the Time?

Malbork Castle
Kerry Kubilius, licensed to About.comIf you are pressed for time while in the northern region of Poland, visiting the Tri-City area may be more enlightening and enjoyable than visiting Malbork Castle. The train from Gdansk to Malbork will take between 30 to 45 minutes, and you will want to alot yourself between 2 1/2 to 4 hours in Malbork to explore the castle and grab a bite to eat. If you have plenty of time and are enthused about seeing Malbork Castle, definitely schedule a trip there; if you're a bit doubtful about its appeal, skip it.
Malbork Castle Review - Language and Season Considerations
If you're an English speaker who is completely lost when it comes to German or Polish, Malbork Castle may seem maze-like and rather dull. English-language tours are not available in the off-season. Not all exhibits have English-language displays. It's possible to trudge around in circles due to the utter lack of direction visitors are given - rooms are not always labeled with signage.
Chilly or rainy whether is not conducive to visiting Malbork Castle. Visit in the warm-weather months rather than in the chilly spring or autumn.
Malbork Castle Review - Other Pros and Cons
Pros:Malbork Castle might be intriguing to children, who can explore the huge structure without parents having to worry too much about what they may get into - except for the exhibits, the castle is its own main attraction.
Cons:The town of Malbork is somewhat seedy, and the train station is a major loitering point for drunks and bums. If you must stay in Malbork for a length of time while waiting on your train, visit a cafe for a drink or a restaurant for a meal where you can avoid being hassled for spare change.