it look like more work to us it. they do should you how to do it with out that first lol

Have it but it seemed too much work to pull it out, then read the instruction, etc. So yes but I am not using it.

I'm like ontheriver I just mark 1/4 inch from the end and stop then turn.

Yes, I use it.

pretty much No. I have a mitering one somewhere, never use it. have the binding connection one too and never use it. I will save it for braid quilts. you stop stitching 1/4 from the corner, then stitch off (I do that at an angle) then remove your quilt from under needle. place binding straight above that corner and fold down evenly with edge of quilt, place under needle and start sewing again. continue on. you have just made your miter. try and try again. you will get it and realize how easy it really is.