Hello! I've had a wool pressing mat beside my machine for about 3 months now, and I love it. I use it for small units and blocks such as the Splendid Sampler 2 which I am doing as well as for foundation paper piecing. It really saves time and I love the results I get! One big caution I was told before I bought is that the New Zealand wool mats are preferable because there is less sheepy odor with them. I did get a New Zealand wool mat and it doesn't smell. I use my mat to dry press. Only rarely do I use a spritz of water.