You may show an example. Is that dropbox sharelink that difficult? I understand the brand name. You could make some sales while using nice and good looking screen shots. It creates a feel and then a sale. The example you have shown is boring honestly.
The difference is that Dropbox' own page is not customizable at all, whereas Servus allows you to use your own theme for the preview pages. My example uses the built-in default theme.
Also, it's about convenience. When you drop a file on Servus' menubar icon, it'll automatically copy the public preview link to your clipboard after upload — or the direct link to the file, your choice.
With the native Dropbox client, to share a file you have to get to it in Finder, copy it to your Dropbox folder, right-click it and select "Share Link" — which will then take you to the Dropbox website where you are presented with the link. Let's just say it takes a while. ;)
