I have no experience with the pasta attachments but with the food grinder.
You need your meat cold but it works well. Regrinding is a hassle as the throat of the grinder is small. I wish the coarse plate was coarser but there are aftermarket plates available, though I don't have them so I can't speak to how well they work.
"First you start with a pound of bologna..."
-My Grandmother on how to make ham salad.