The sales pitch ends with never climbing a ladder again. That is an excellent personal goal. It does not mean the gutters have stopped needing attention from somebody.
Less debris is different from no maintenance
IKO's gutter-maintenance guide describes guards as screens or covers that limit debris entering the gutter. Tree type and local debris still matter. Ask how the selected system is inspected and cleared, including material collecting on top rather than inside. Describe the actual trees beside the house and the debris you find now. A quote that says only 'leaf guard' leaves you guessing about fine seeds, needles, and access at the downspout. Ask whether a service visit requires lifting sections and who reinstalls them.
Observe it in ordinary rain
From a safe ground position, watch corners, outlets, and places where roof valleys concentrate water. Note whether water enters the gutter or overshoots it. A guard will not correct every existing slope, capacity, or discharge problem. Arrange qualified access where cleaning or inspection cannot be performed safely from the ground.
Before the next step
- Ask which debris the product handles well and poorly.
- Confirm cleaning access and the written maintenance requirements.
- Watch the installed system during rain from the ground.
Keep an inspection and cleaning plan even after the guards go on. If water still spills over a clear gutter, look at slope, outlets, and capacity next. Another guard may not be the missing piece.