More bars in more places…. but only if it is an urban place

Since having my cell phone switched to AT&T, I have noticed more problems that when I had US Cellular. Now while driving up the interstate the signal goes up and down, sometimes cutting out completely. In fact at home my signal goes between 1 and 2 bars… US Cellular at least had 4 or 5.. So everytime I see one of those commercials, it just makes me mad, as unless you are in a highly populated area, your stuck with the same old crappy coverage that Cellular One had before AT&T bought them out. The only good thing about the new one, is that the GPS works in it with Google Maps. But other than that, the internet access is slow, calls dropped and the coverage sucks.