I'm constantly doing leaders and enders so that's always chain piecing. I mostly sew on my featherweight machine so it helps to not have any threads get clumpy on the back side of the sewing.
I've been known to chain stitch a whole quilt worth of 2 1/2" squares for a baby quilt before I go to the ironing board. But, I do cut the string of pieces before they hit the floor and stack them in a pile.