Has anyone used or experienced the gutter ball? I see that Powerwash.com sells it and I’ve seen a couple videos on it’s use. I do a lot of gutter cleaning and almost took a fall off the roof last week. Slippery cedar roof. I fell but stayed on the roof. No damage to anything but my cell phone that was in my back pocket. I knew I should’nt have been up there as I didn’t have a safety harness. Anyway, I like the idea of staying on the ground and using the pressure washer. Any thoughts, Pros or Cons?