Digital BW, The Print

I'm waiting for the shipment of my new printer and I'm considering 
making my Epson 2200 a full time black & white printer using the 
Piezography inks.

I was hoping to get some feedback as to the opinions of this 
combination and any suggestions for alternatives, papers, or anything 
else I should know about the set up.

Is the K7 set the way to go?
Is there another alternative by Piezography or another manufacturer?
Are users printing on matte rag or other papers more often?
Any other thoughts?