Much better than that stainless steel and brass backpack I used to use. Imagine hiking up and down with that. Oh, right and having to pump like crazy to make it work. I do enough hiking that batteries are not something I would bet the farm on. Rather have an engine. I use ceramic disc core nozzles on a double swivel and a two handed tree gun for high stuff.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738