Truly, had never used it before today. And, wow, what a great product! It did smell a bit, but almost no fumes. Great adhesion to the fabric and I was able to reposition and smooth out any bumps. And, most importantly, it isn't gumming up my needle, which is what I was most nervous about. (The ladies who recommended it to me assured me that it would not be sticky on my needle - and it isn't.)
Oh, and, the quilt I used it on is the Ugly Fabric Quilt - I was the "winner"! It's almost finished - pictures will come next week!