I have used Foxit, yesterday actually, because Adobe Reader would not print a document I needed (although there was no reason for it not to print) but it was saying something wrong with one of the graphics.
Foxit printed it with no problems. (Freeview Channel Guide)
However, it is not entirely possible to do away with Adobe PDF Reader entirely as some programs I have tried to install will not install without Adobe Reader. (even though Foxit was on the system, because Foxit runs from a folder and not from a system file)