[etizzle]

even in a 5 handed game playing fast, getting raised big on the turn with KK in this situation means you are going to have to let it go most of the time. Look at the confusion he set up by playing it this way (if he did have an overpair). OP is close to calling with just top pair, whereas if villain had just fired the whole way he would have been much more likely to lay it down.

and yeah its probably the wrong way to think about ATo in terms of whether or not to play it in general. Most of the times we wont be put to tough decisions like this, although you are correct if you just mean that ATo is an awkward hand to play in NL, it is. Rarely are you winning a big pot with one pair and ATo, and if youre not careful you might lose a big one (ie this hand).