Lots of pros, like easy searches, bigger size, faster processors, multi-tasking with multiple pages open, keyboard, mouse, and more.
Cons include people thinking you're doing karaoke when they see the large screen. Also it takes a larger battery if you're moving around.
To me, lots more pros than cons. I have a small laptop, Ipad and Android tablet, but I always use the laptop. Well, I always have the laptop on hand but generally don't use it.
DonM