How do I choose between the 6.5, 8.5, 10.5 and 12.5 ft versions?

Pick by the working height you need to reach, not the height of your roofline. A telescoping ladder's usable reach is shorter than its extended length once you account for the safe standing level, so size up if you are near the limit.

Is it stable enough for roof and gutter work?

It is rated to 330 lbs and has non-slip feet, but telescoping ladders flex more than rigid extension ladders. Set it on firm, level ground and keep it at a safe angle for any work above ground level.

How much space does it take up when collapsed?

It collapses section by section into a compact bundle, which is the main reason to choose it over a fixed ladder. It fits in a closet, garage corner or vehicle trunk.

Can one person set it up?

Yes. The aluminum frame is light enough for one person to carry and raise, and the sections extend and retract by hand. Check that each rung is locked before you climb.

What should I check before each use?

Confirm every section is fully locked, the feet sit flat on a stable surface, and nothing is caught between the collapsing sections. Keep fingers clear when retracting.