To be clear, there are dozens upon dozens of LeapGates and players may need to hack through numerous LeapGates in order to complete a single quest. (randomnpc.com)
I suppose, unlike MMOs in which parties kill hundreds of NPCs during a single quest, you're only gunning for one monster. (thesixthaxis.com)
There are two full expansions, and players attempting to complete every single quest and find all collectibles will easily spend over 120 hours exploring the vast landscapes found within The Witcher 3: Wild Hunt. (xboxenthusiast.com)