If you already have the game you might as well just try it for yourself. Make a new character and world and play until you get past the Dark Forest. By then you should have a feel for most of the changes to the food and combat system everyone is complaining about.

That said I would not recommend some buy the game new at this time. Simply because it might under go another drastic change in response to the response to the H&H update and best to wait until the dust settles for a bit..