I had high hopes for this and I didn't care for the noise or distractions of the email credits - I've just been looking for something that pulls data in from other sources, namely GA.
I was shocked to see such a limited number of options when it came to pulling in data. You're hit with 3 very rigid categories that only provide a very finite amount of metrics to choose from, seemingly with no way to assign a dimension outside the category, so you just get a smattering of data that is unorganized. For example, if you choose "Audience" you can see User, New Users, etc. but you have no way to assign a dimension like Page or Source/Medium, because they are not available under the "Audience" Category.

When looking at something like Two Minute Reports, I get a much more comprehensive experience to determine my dimensions, metrics, and other options that you would generally find inside GA mirrored almost perfectly.

At this time, I'm refunding Airboxr; I hope they can drastically improve the Google Analytics feature, because right now, I see absolutely zero value in it as the data results in numbers without context.