I didn't want to use it like FOE, just to cover the raw edges, after an elastic was already applied, for a 'neat' appearance and soft edges for baby's legs/back.
But Yes, I see where it would be difficult for corners, after having played with it this afternoon! The New Conceptions covers have a 'straight' edge for the sides where you fold and stitch down, so it might work for that better than the 'rounded' style I played with today.
I cut a 1" strip of microfleece and tried applying that, over the entire outer edge, after having used elastic. It's working nice, but cutting 1" of a LONG enough piece to give me a continous strip was no fun!
I'll post a pic if I can figure out where to put my pictures online for free! It's a buff colored 300 wt MM fleece cover with purple microfleece bound edge. If I get my new colored snaps tomorrow, I'll finish it and take a pic.