Although Serbia does not agree with Kosovo's independence and claims that it is not valid, they are pretty much the only ones that are bothered by it. Kosovo should remain independent and many countries in Europe are for this. Over all it does help regional and international stability throughout Europe and other continents.
Independence for Kosovo would only bring about more killing and bloodshed in an already rattled area of the world. Many people do not want Kosovo to leave the homeland, and this would cause them much disdain. With this comes war and fighting over that territory, so it would be best for the two sides to get along until a more peaceful and sensible time.