The phrase 'a very useful feature' is correct and usable in written English.
It can be used when you want to emphasize that something is useful and helpful. For example, "The new smartphone has a very useful feature that allows you to set reminders for important tasks."
Among them the procedure uses hand calculations, a very useful feature for process engineers.
The 1402 five output hoppers (stackers) were a very useful feature.
Normalized Difference Vegetation Index (NDVI) is a very useful feature for differentiating vegetation and non-vegetation in remote sensed imagery.
A very useful feature of the book is the inclusion at the beginning of some of the chapters of tables showing the chemical relationships of the products described.
This means that a timeline can be updated after being published — a very useful feature for projects which continue past a publication date.
The ChatGard function in Cyber Patrol not only scans for preset information and content based on your criteria but also encrypts it in all of your computer applications, a very useful feature.
Microsoft is really trying to increase the appeal of Window Phone to developers, and a new tool just released adds a small, but very useful feature: instant translation of user reviews from one language to another.
You can read a bit more about Mayday here, but given the ease of use and simplicity, it's a great and very useful feature.
A fun not but very useful feature, once the user enters this option, they have the opportunity to playback some of the pre-recorded songs in the program.
Bitbucket Server, Atlassian's self-hosted Git version control service, and Bitbucket Data Center are getting a small but potentially very useful feature in preview.
Bitbucket Server, Atlassian's self-hosted Git version control service, and Bitbucket Data Center are getting a small but potentially very useful feature in preview.
