It will take a bit of getting used to, but where you used to see only a third of a webpage at a time, you'll now see a lot more at once, without having to scroll up and down or right to left. It does make it much easer to surf the web I think. If you don't like it, you can always change it back the same way, in less then a minute. I hop back and forth from one resolution to the next, depending on the site I'm visiting. Most look better with the resolution set at 600 x 800, however, some look better in the lower resolution.
Computers are a never ending learning experience.