Well it cuts, I didn't have anything in particular to work on so just made some test cuts and turned about 1 1/2" of 1/4" aluminum into 1/8" aluminum. Cut nice though.
Also faced and turned a piece of that cold rolled steel. not pleasant stuff to work with. 1" bar cut with a hack saw. That has also gone a long way towards convining me of a need for a band saw....
The tool rest on the grinder will work for now, I want to use it enough so that I really have an idea of what will work for me. I imagine something like that Accurest is what I'll want though, I've seen another similar to that that seems to be popular. I'd really like to make my own though. It doesn't seem like it would be that hard to make something functional.