Our gutters hadn't been cleaned for at least 5 years (possibly more) and since we live surrounded by trees there was plenty in there. There are some sort of guards over them so getting up on the roof and doing it ourselves was going to be a slow process. The Gutter Blokes came with their blower and were done in 20 minutes.
It was definitely a no-nonsense job - not much clean up after the job - but then again, they never claimed they would!
At $150 it was the cheapest gutter cleaners we could find in the area.