I've seen demos of a tool called Datameer which seems to offer very similar functionality (an Excel-like interface for configuring a job on a small set of data,

I've seen demos of a tool called Datameer which seems to offer very similar functionality (an Excel-like interface for configuring a job on a small set of data, followed by submission of that job to a Hadoop cluster as a MapReduce job). How does DataNitro compare to that?