Sort of how I felt, it was a good episode but something about left me feeling unsatisfied. Glad a whole episode was devoted to it. I think a huge miss was not showing the Aiel handing over the sapling and explaining what the debt they had was. After Moiraine mentioning the cutting down, I think seeing what caused the debt would have been a must see.
As others mentioned, seeing all of the spears left by those who never returned was a pretty nice visual.