I find changed to combat abilities in the creatures a nice touch, otherwise I would just know what to expect.
Is it hard - yes, but it is beatable.
I do agree that monsters tend to snipe the wizard/cleric a lot. Which is ok I guess, if you treat this game as a co-op game against an AI, and not a pnp with a DM. Since if I as a DM was sniping the wizard in every encounter then the player would soon leave the table.
