For a free screen that comes with the magazine, I think it's excellent. There are quite a few useful tables, though they have pictures of miniatures along the bottom. Not sure what that's about. It's not laminated, but it's a heavy enough stock to stand up fine. As was mentioned, it might not hold up over the long run if you like to throw your dice against it, but maybe it well.
All-in-all, it's worth getting issue 310 for the screen. The issue has some good stuff in it, too. I like the variant Fighter classes. Nothing flashy, just a little extra flavor.