Poking at this I immediately dislike their licensing terms, which makes me hesitant to use it. (Their license agreement also appears to be unavailable too.) For the "license-required" classes the lowest price you have to pay is $289.00. I don't really see what this offers other than a uniform API over multiple libraries that already exist and that are fully open source. The idea and concept is awesome, but their licensing isn't very reasonable.
"On two occasions I have been asked [by members of Parliament!]: 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out ?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question." — Charles Babbage.