I had a set of ironmans for a while. They wore out rather quickly for only running fire trails but they were a budget shock so I didn't expect them to last too long. IIRC the hardware that came with them seemed cheap but the bushings outlasted the shocks.
FWIW they rode better onroad than the procomp Es9000s I have on now, not bouncy.
I would say they are okay, just don't expect more than a year to a year and a half out of them.
Also, one pair was stamped Canada and the other pair was stamped Mexico. Maybe this helps determine who makes them.
Edit: I had the foam cell elites not the nitros, I didn't realize they had two types.