"useful to both" is a grammatically correct and commonly used phrase in written English.
It can be used in a variety of contexts to indicate that something is beneficial or advantageous for two or more parties. Here is an example: "Having a shared carpool schedule was useful to both Jane and John, as it allowed them to save money on gas and reduce their carbon footprint."
The search tool is very user-friendly and can be used by anyone not familiar with computational methods and will be useful to both clinicians and researchers working on tuberculosis and other Mycobacterial diseases.
"It's been useful to both sides," he said.
A point was useful to both but did not ease their Premiership relegation plight significantly.
If well served, clients will come back to them and a relationship useful to both parties gradually builds up.
These indicators should be useful to both members of the public and the algorithms that rank and distribute news content, including those developed by Facebook, Twitter and Google.
I want that relationship to be useful, useful to both countries, useful to the region [Middle East] affected by wars, crises and tragedies".
Divide your guide into sections that would be useful to both historians and tourists, including topics such as government, religion, architecture, daily life (including foods) and economy.
The great advantage that Facebook offers, in theory, is the ability to target ads in a hyper-specific way, which should make them more useful to both advertisers and consumers.
The mutual leveraging of that relationship has grown more useful to both men as Emanuel's poll numbers in African-American neighborhoods have sharply declined — and as Gates's ambitions for the South Side have grown.
A few times, I did feel as if my effort to help turned out to be an imposition on someone else; but I was surprised by how often it turned out to be useful to both sides.
The result is useful to both physical and engineering application.
