Actually the game are not that hard as commentators claims. There are plenty of tactics to make really strong lane (my fav are nurse->thief->anything sturdy enough) or rush the castle (you can left unguarded lines while tossing lvl 2 units on easy lines).
Yes, there are a lot depending on luck with building lanes, but opportunities are everywhere. Calculate the enemy deffence-offense when spying! (I hate archers on both sides.)