I actually used the manual in the old days when there was a spiral paper version that woukd lie flat beside the computer while I played.

When things went to PDF, I got out of the habit because my computer did not multitask well, and the screen was small.

Now that LCD flat screen makes a large monitor cost-possible, and computers are faster and able to handle more apps at one time, I find that using the PDF manual is not so frustrating.

I like that when you serach for a topic, you get links to ALL references of the topic.

I DON'T like the fact that some features don't show up at all when you search for them. Don't ask me which ones because remembering things is not my forte.. but it has happened at least 25% of the time when I search for information in the PDF.