Clearly powerful, but complex. I've begin to wonder if simply writing native API calls in .Net would have taken about the same amount of time, but this is probably more as a result of familiarity than tech. In short, this looks to be a good product if you have the time needed to learn it.
No too practiced at making APIs for others to call, we started with this module and made a great, robust API with security validation/checks, variables on data and more. What a great solution!
An excellent module simple to use, I would recommend this to anyone. The support on this is exceptional even dring the trial period the response has been terrific.