When I went wfp I got a van mount and a freedom trolley. I had the trolley for the odd job where the hose wasn't possible to use.
After a couple of months i'd knocked over a garden statue (it broke) and flattened several flowers along the way.
I started working with the trolley to avoid this and stuck with it mostly for a couple of years.
Getting a raised hip from bad lifting technique made me swap back to van mount exclusively.
Anyway, with the background waffle over, I did the same work in 1 hour less time with van mount and reel.
It is well worth learning how to work with the hose. It's time consuming for a couple of times but you learn how to make it work. The benefits are great.
What do you mean 'how heavy is that'...?
100m on a reel can't be that much if any heavier than a trade ladder?? What's wrong with you man?