My uncle smoked Chesterfield cigarettes. After word got around, no one asked for a smoke. Tom, I would look on that saw as challenge. A bit overkill for rose bushes, though.
Have a Poulan gas saw and a HF electric saw for small stuff.
Good luck in teaching. Saw a sign in a gift shop- I'm a teacher. What's you superpower? If you will be teaching kids, will you be required to have a background check? I have a close friend who wanted to teach a two or three hour class on archery at the Boys & Girls Club. He was surprised at all the background material that was required. My wife was in preschool education for over 30 years. That is SOP in any teaching position or anyone else working with kids.