I like PDF files. You can maintain the page layout, fonts and content and be sure that it will look the same no matter where you view it or print it, at least most of the time.

What I do not like is how sllllloooowwww the Adobe Acrobat Reader is. It is slow to download, install and run whenever you want to view even the simplest of single page PDF files. At least on a Mac, I can use Apple's View, which is very fast to open and load a PDF document. The Acrobat Reader is also slow on Macs. I find it very annoying! Acrobat is now at version 8 I think and I though software was supposed to get better with each version or upgrade. Whie there are many new features, Adobe has added way too much bloat to the reader program. They really shoudl two versions: the nimble, quick and lean editio and the current slow, fully featured version with all ofthe bells and whistles for those that want to do more than simple read and print a PDF which is what I wnat to do 99% of the time.

Now Windows users can enjoy the same speed and ease of use of Apple's Preview with the free Foxit Reader 2.0 for Windows. There is also a version for Linux. With Foxit you can view documents the same way you do in Acrobat. The interface is suprisingly very similar to Acrobat. There are bookmarks and you can search the document. You can print, view contents as text and fill out forms as well. 

Foxit offers additional PDF tools as well. If you considered Adobe Acrobat Professional, check Foxit's PDF Creator and PDF Editor applications. These cost a fraction of what the comparable Adobe products cost, and if the PDF reader is any indication, probably much faster.