I love this canvas! Every other 3.75 canvas I've used is plastic-y gets permanently creased, which lowers the quality of my finished pieces. But this canvas loses its creases within a matter of minutes if you roll it up.
(Because I'm lazy, I make rugs with Alize loop yarn [Bernat Blanket EZ / Alize Puffy]. With loop yarn, you get a delightfully fluffy rug and you can choose whether you want to "lock" each loop with twine, depending on the texture/effect you're going for, and you also have the option of locking your loops after you've pulled them through the canvas. This 3.75 canvas works great with loop yarn as long as you only pull it through every other loop and leave a few blank rows, especially as you get farther from the center. It's also possible to pull Alize loop yarn through the 5 hpi canvas, but I like the 3.75 hpi canvas better because it's slightly easier to work with and the yarn is still held in snugly.)