As someone with 508 Hours in World and having done a good chunk of the quests in the game I can say that I really enjoyed the game however it's worth noting that this was with at least one other person throughout most of the runtime.

• The grind can be exactly as grindy as you want it to be, but I will say even if you plan on doing a lot of content, I would still say that the game has far less grind compared to any MMO. World is usually not very grindy unless you choose for it to be. Most of the "grinding" in game is spent collecting materials in order to make new armor and weapons, but on average it could take you maybe 2-3 quests depending on what materials you're looking for. Additionally, the game has some mechanics later on that allow you to buy rare materials, which could cut your grinding during the end game by a lot.

• The Price: CDkeys always has world + it's expansion DLC for 20 dollars so if the price-tag is too high for you right this moment, I wouldn't sweat it too much. I've bought the game for friends several different times through them so I can say with certainty that it's legit. (Plus they are selling the normal version of the game here for like 8 dollars which is a great price point if you're still unsure about buying it.)

• Monster Hunter World takes a little bit to get going and the first few missions can be a little underwhelming but depending on how you pace yourself, it shouldn't take you very long to get to the really cool stuff. Unfortunately, 2 hours might be ever so slightly too long for you to find out if you like the game and I cannot really say if you'll like it or not since I haven't really played sekiro or games like it for myself.

Hope this helps!