Here is the non-partisan opinion
We had expected this sort of turnaround and are bouyed by it, and it's part of the reason we voted for O. However, the story is weak at this time, and in order for the results of this to be a realistic comparison between the two presidencies, we need to wait at least 7 more years, probably longer.
We notice that Presidential favorable/unfavorable rates almost universally go down during a Presidency, and we should expect a similar result here as world events occur. For example, had the poll been taken this week, the number for Poland would be cut in half.