times are even better or faster than the official one. If you want to try a new choice, PDF-XChange Viewer is one of those recommendable choices.
It includes all common functions included in PDF viewers: zoom in and out, rotation, open from URL,... and it is very light, so it runs very well even if your computer is a bit old.
Finally, PDF-XChange Viewer allow you to extract some parts of the document or take snapshots to save them as separate files. With no doubt, it is a very interesting alternative to Adobe Acrobat Reader.