First look at this website, you would feel that you have landed on your twitter page, since it would remind you of twitter layout, colors, and content wise. But this website is not about your twitter account, it is simply about what is trending and what is hot on twitter.
Features
1) You could see which tweet has been made popular recently, and you could sort and filter the list for last 24 hours popular activities
2) Tweets are categorized in terms of which domain they belong to, for example you can click on tabs like sports, entertainment, technology, business etc, and you could see the latest from legends that you follow or what others are following
3) You could also filter them in terms of news, videos and images
Who would find it useful
1) If you are following a movie star or simply want to see what is latest from bollywood/hollywood, then you could simply see here rather than doing all the hardwork and searching twitter
2) Since it shows the latest first hand information from the world, so you can use it as an alternative to News channels/websites, as you can simply go to the section you are interested in.
3) You can see the latest trends and how successful people are promoting their stuff through twitter here, and how much it is successful. You can learn a great deal from here.
All in all, i see this as a great platform form for not only getting a consolidated and latest news, but also a one stop shop for getting a credible data for a comprehensive data from analyzing twitter usage by certain industry or people.