Digital BW, The Print

Inkjetgoodies refillable carts, MIS & 1280...

is anyone here using or has used that combo?  I've been using 
Piezotone Seleniums (prefilled carts), but they are SO expensive 
(they are wonderful, however).  

I have some of my same images, thanks to a friend, using the MIS 
Full Spectrum Neutrals printed on an 1160.  When my friends compare 
the two (MIS & 1160 vs Piezotone & 1280), they prefer the MIS 
(Enhanced Gen. Black).  My question is, has anyone here used the 
Inkjetgoodies refillable carts for Epson and the MIS inks?  I'd like 
to hear your thoughts.  I can't go CIS right now, can't afford it.  
I'm using the Inkjetgoodies refillables for Canon s900 and love it.  

Thanks for any responses.

treadwinkle