Judging by personal experience and what is discussed on forums, it still works, although not as stable as before. There are glitches with new Windows and Office updates, sometimes activation crashes after another update, and you have to repeat everything, still helps many, but it is important to understand: this is a workaround, and it is not always predictable. There are many risks, from blocking activation to potential security threats, especially if you download an unverified version. So you can use it, but with caution.