I think my main reservation is the monthly plans, perhaps because I'm not your target market and really don't put reports together that often. (though on another note, I do put bids / proposals together quite often, so maybe that's another angle)
In any case, I think having a plan that is pay-per-use (no monthly, $50 a report) would make me consider this next time I have a document to put together. I'm probably a different class of customer than your demographic though.
In any case, neat product, congrats on the launch!