On paper, in person, and from limited personal research Mark Arnesen and Adam Smits (who IMO are the current "faces" for NZC) are IMO top class. Call Mark or Adam and come to your own decision with some other research.
The corporate restructure year of 2016 is behind them and what I have heard from the board at GM/AGM's is coming together with the DFS studies proceeding pretty much as planned (I think), the exploration program started and as Mineralised has listed due to be reported over the next few months. In addition some infrastructure needs (roads etc) have been brought forward which is probably helping exploration and DFS efficiencies.
Will be interesting to see the financials at the end of Q2 17 as quite a bit of money is likely to have been spent from the fairly large raising late last year. Further capital will be needed if the DFS is positive - already flagged by the board I believe.
Kalongwe itself should be a nice "little" mine if DFS and macro economics align with finance. This would give NZC a good income stream when/if it gets up and running.
Good exploration results would be real icing on the cake. Early days and highly speculative for the regional potential, but with a few true "elephants" in the area hopefully there will be some good drill assays for Nzuri.
Dr Ruxton is also on the board and was a founder to Tembo Capital the majority shareholder of NZC.