
I love this puzzle and I put into the category of puzzles I love, which so far only had one other member... Cross Sums (aka Sum Totals or Kakura).
Puzzles I don't love and are sort of a waste of time but are alright for doing on the bus: Sudoku.
The Adventures of Logan-the-Dog and Random Thoughts of Robert-the-Human

Puzzles I don't love and are sort of a waste of time but are alright for doing on the bus: Sudoku.