I love working with Japanese saws, especially the double headed Ryoba or Kenzo saws. Japanese saws take less energy to use because they're sharper and are designed for shorter strokes. You do have to get used to the fact that the teeth on a Japanese saw cut on the pull, not the push stroke but that's why they take less energy. They can be made thinner and still not bend because you're not pushing them. They'll make beautiful, fine cuts or hog into a piece of timber. The double sided saw gives you rip teeth on one side and cross cut teeth on the other.
You can even find Japanese style saw teeth on E-Cut blades made for the FEIN MultiMaster.
The tooth design is so good that more and more western saws are adapting the tooth design to our push saws, making them better than before but still not as effective as the original Japanese pull style saw.
I used to have to import my Japanese saws from Japan but now they are easily available in speciality wood working stores and even some regular renovation stores. Remember, they work better for us on higher, rather than lower, workbenches.