The glue sticks are my favorite for curved piecing. I run the glue on both pieces and then ease the pieces together. Then sewing the 1/4" seam is just as easy as if it's straight piecing.
However, I can't imagine how I would use it for basting--Elmer's Washable School Glue is my go to for that. Just basted a king size quilt that I quilted in 3rds a la Marti Michell--went beautifully!