Another vote for the Cobra CIS. With settings at "black and white," "best picture," and "ultra glassy," our film works great. We print halftones on the regular, but rarely any kind of multicolor dot blend, FWIW.
I have gone through them at a rate of one every 18 months or so, but they come with a bunch of ink anyway, so buying a whole new kit and replacing the old/dead one isn't really that expensive.