Guards are worth it when the math of your maintenance says so. Here's the frame we'd use on our own houses.
Guards earn their price when: your trees force multiple cleanings a year, your roofline is two stories (every cleaning involves tall-ladder work priced accordingly), or debris sits in your gutters between cleanings holding water against the fascia. In those cases guards cut the visit count and protect the wood between visits — real value on both counts.
Guards are a weak buy when: your lot is mostly open sky and an annual cleaning already keeps up; your gutters are undersized or badly pitched (fix that first — a guard locks a bad gutter's problems in and hides them); or you've been promised zero maintenance forever, because that promise fails in a Florida spring and the disappointment gets blamed on the product instead of the pitch.
One more honest scenario: if the gutters themselves are near end of life, put the guard money toward the replacement and add guards during the install — fitting guards to new gutters is cleaner and cheaper than retrofitting them onto tired ones.
If you're not sure which scenario is yours, that's exactly what a free estimate answers. We'll look at the trees, the roofline, and the gutters, and tell you plainly whether guards are worth it at your house — including when the answer is no.

