The phrase "a standout feature of" is correct and usable in written English.
It can be used to highlight a distinctive or notable characteristic of something, often in a positive context.
Example: "The new smartphone has a standout feature of an advanced camera system that captures stunning photos."
Alternatives: "a distinguishing characteristic of" or "a notable aspect of".
The trend for increased spending on leisure activities and one-off events has proved a standout feature of the UK's GDP growth, with hotels experiencing a boom in short-stay breaks.
Bing's video search has long been a standout feature of Microsoft's search engine, and it can easily compete with Google's video search, especially given that its feature set is now actually a step ahead of Google's.
A standout feature of the biogeography of Partulidae is the markedly asymmetric distribution of alpha diversity across the family's 10,000 km range.
Our investigative reporting on the candidates and the role of money in this election has been deep and revelatory, a true standout feature of The Times's coverage.
"Horton's captaincy has been a real standout feature of Lancashire's campaign, he has shown the ability to react and respond during games to help Lancashire set, chase down and defend various totals.
A second standout feature of the Helicosporidium mtDNA is in its introns, and in particular the presence of a group I intron that splices in trans.
The straps are a standout feature.
The direct running and sheer pace of Dyer was the standout feature of a brilliant attacking first-half display while the Rams also never looked comfortable against Leicester's lively front duo of Vardy and Nugent.
While the standout feature, of course, is the inclusion of PayPal as a payment method, the new SDK has actually been built in such a way that turning on or off PayPal, as well as any future payment methods Braintree chooses to integrate, will be as simple as flipping a switch.
His power and accuracy have been the standout feature of the division.
In this case, though, Toyota, has endowed the base model with almost every standout feature of the new Camry.
