The phrase "a compelling service" is correct and usable in written English.
You can use it to describe a service that is attractive, engaging, or persuasive, often in a marketing or business context.
Example: "Our company offers a compelling service that meets the needs of our customers and stands out in the competitive market."
Alternatives: "an appealing service" or "an enticing service".
In large and expanding markets, there is always a value proposition to be found with niche players who can provide a compelling service.
With retail sales of physical goods falling, the emphasis is likely to be on downloadable titles – and providing a compelling service rather than raw processing grunt, could be the key to success.
Jon Gisby, director of future media and technology at Channel 4, said: "We are extremely proud of the new and improved service and think the combination of fantastic content that's easy to find and view will prove a compelling service for all users.
Backed by venture capitalists including Benchmark Capital, Institutional Venture Partners and Union Square Ventures, Twitter says it is "holding off on implementation for now because we don't want to distract ourselves from the more important work at hand which is to create a compelling service and great user experience for millions of people around the world.
The team at Streak has built a compelling service.
Lenovo achieved the first step to success, by launching what looks like a compelling service offering.
But the invoicing tool takes this a step further by offering a more compelling service catered toward merchants and contractors.
The theory was that there if AT&T could own the 'last mile' to the customer's home, it would be able to both provide a more compelling service and protect its long distance market share.
Airbnb, meanwhile, captured much more housing inventory, and this allowed the company to offer a more compelling service.
Photobucket CEO Alex Welch said that by adding search to Photobuckets Media Plug-ins will deliver a more compelling service option for Photobucket's partners.
While that's still true, if WebSite Optimizer works as advertised I think it will be a very compelling service for small publishers.
