I don't have much ladder experience, but when I bought a 2-storey house on the side of a hill I knew I was going to need something better than my 24', 225 pound ladder.  I probably really need a 32'er, but I was intimidated when I looked at one, especially since I was going to be handling it mostly by myself.  This 28'er turned out to be perfect, not too awkward to handle, but with a sturdy feel when you climb.