Great product. The new version 3.60 (in beta now) even logs in for you and goes to another page to compare that. Haven't seen anything like that elsewhere. I have been using www.infominder before, and website watcher is x times better. You can compare to archived sites when you want and not at fixed intervals. (At infominder, you have to review the changes before the new updates which overwrite all recorded changes before that, grr.) Customization is cool, and Mr. Aignesberger even helped me in using the login feature (documentation might get a little clearer here, couldn't find the feature to deal with cookies and login, and wouldn't have figured it out without help.) Everything else is supersimple. Highly recommended if you visit sites on a regular basis to see what's new or to search for certain terms made in new changes.
General rate: Positive