I haven't forgotten. I use it everyday. One issue is that it has gone for sizable lengths of time with frustrating unfixed bugs. For example, there was a period during which if I wanted to quickly peek at Nikon raw file with it, I'd have to wait a minute or more for it to load the file. A few years ago, it was pretty crashy viewing PDFs, one of its primary uses. It's better now, and I hope Apple continues to refocus on their classic levels of reliability. Preview for me really is an "Everyday Thing".