I enjoy it; it can be a little over the top when it comes to corrections, which is excellent since it shows it's working. My only complaint is that it gives you the corrected text and then requires you to discover where the content is, which isn't too horrible but makes it more time-consuming to find minor problems on huge pages. Having said that, it's useful in general because it detects errors and informs you of their severity. I believe it's really valuable and will help keep my future spelling closer to perfect than I could have done.