Pros:
Well known, many users & a good forum, easy to get help.
Relatively user-friendly.
Cons:
It supposedly is a testing ground for Red Hat's other projects
Does not come fully configured
I'm sure there are many more pros and cons.
By not fully configured, I mean that it's unlike PCLinuxOS or Linux Mint that comes with multimedia codecs for listening to MP3s, Flash support in Firefox, Java applet support in Firefox, etc.
If you're looking for a very easy-to-use, not much configuration necessary, desktop Linux, I'd suggest you go with PCLinuxOS or Linux Mint. While there is a lot of hype surrounding Ubuntu & family, they do not come as pre-configured as do the above mentioned.
It also depends on what your computer specifications are. You should have at least 256mb RAM and 5-10 GB of hard drive space, minimum.