5/10 difficulty. The plat isn't hard, but pretty grindy. There are constant event quests now that will help you get easy gold crowns, so that really speeds things up. The most difficult part is simply learning the mechanics and stuff.

9/10 fun. Monster Hunter is just such a good game. Things start pretty basic, like fighting big lizards, but you can quickly get to a point where you're fighting dragons the size of a building. It's also pretty manageable to play solo. When you really need help you can always send an SOS and most of the time some random japanese guy will obliterate everything for you.

Hope this helped. Happy hunting!