I bought this as I didn't have any other pop filter handy and I'm not entirely dissatisfied with my purchase.
The pop filter is sturdy, well constructed, the metal grill is gorgeous, and the clip on joint is fairly solid.
Sadly, that's all the good I can say about it. Firstly, the gooseneck is veeeeery short, almost way to short for most condensers that come with their own shockmounts, and I'm 99% sure it wouldn't work with an SM7. The gooseneck is also very flimsy and weak, I had to bend it in a very strange way to get it to stay put.
Overall, it'll do the trick in a desperate situation, but you can get better.