I have one that I use quite often. I haven't had the opportunity to use it on angles yet but it helps me waste so much less fabric. I especially like that it holds the remaining fabric in place! I was able to purchase the bag for it as well so I have somewhere to store it when not in use. I did think it a bit overpriced as well but I suppose if we want to pay it, they will charge it! It really was helpful cutting out my 1 1/2" squares for the swap! :)