I personally would not use it. First of all it is too expensive - at least over here. I think it would not be a problem to use it for straigt lines and normal sewing and it also would hold the quilt together as long as any other thread. But only slight pulling with FMQing might make the thread break.
I love to use embroidery thread (I use cotton) for appliques.
just give it a try with a little test piece. Good luck and a pretty quilt you have there.
Granny