It is confusing at first, but once you memorize where all the notes are it is very good. Notation is based around the idea of key signatures, and once you have that down it becomes very intuitive and you can actually know what a piece of music sounds like just by looking at the notation. Western music has 12 distinct pitch classes, but typically the notes are used in scale groupings of usually 7 notes, with accidental "outside" notes being easily recognized by sharp and flat symbols. Doing it that way gives easy visual cues for musical "events" such as key changes, outside chords.. etc. There is a reason it has stuck around, it is a quite ingenious system.