This is my own account running DOTC in a party of 4. As you can see from the video, there is a glitch at the third map which allows you to jump up the cliff. This reduces 10 seconds running up the field. Overall, with a Acrobat and SM/Mecery, it will take about ~3:30mins for Master run.

• Difficulty: Master - 3:30 mins ~ 5:00 mins (Recommended)
• Exp: 3% ~ 4% (Decrease when level increases, ~2.5hrs per Level)

Personally I felt that this is the fastest dungeon to level up from level 32 to 40. The map does not have any teleportation or triggers. It is recommended to do it in party of 4 to minimize time consumption.