I used to but QVR hair all of the time between 2011-2014 and it would last at least 1 month, with no issues. As soon as I took the hair out of the pack and installed it, it became tangled. Everyday, has become increasingly difficult to detangle. In addition, I have only applied heat to it once, and it did not hold a curl, whatsoever. Prior to that, I did apply water and flexirods and the curls turned out nice. I tried reaching out to the QVR chat about Love it or Exchange it, and never got a response from the chat team. Please reach out to me, as I have been completely underwhelmed by this hair.