I used a telescoping ladder like this one for a number of years when actively managing and maintaining 53 rental units. It was great - collapsed it fit upright behind the driver's seat and would lean against a one story gutter. Did have a slight tendency to spin as it didn't have a wide footprint, and after some time and wear and grit it decided that collapsing a rung or two while I was on it was good fun. Only let that happen a couple times. It is out waiting to go to the scrap yard, but I kinda hate to see it leave.
Had a Little Giant also, but as scaffolding.... not a fan: