This is a very difficult module to do in 4 hours, especially with a group that tries to learn as much as it can with the lore of the giants. I am always a tad fearful when I run a module with a group that doesnt understand that death is a very real possibility. The final boss is a cool mechanic, that can easily wipe the party if they are not smart. The traps can be "save or die" for low levels. I enjoy running this adventure, it shows that death is a real thing in 5e, but if your party is not adult enough to understand that, perhaps you should look to a different module