It's not completely without bias (no one is, especially the BBC running scared of their own shadow post-Hutton), but it is a good place to find other points of view and shows some incredible documentaries and highlights some stories from around the world that western news channels just ignore either because of cost, because they are beholden to corporate sponsors or because it's just not entertaining enough.
As with the BBC, having state sponsorship can actually work well to provide funding to fill in the gaps that market-driven news leaves behind.
Yes, it happens that the country sponsoring Al Jazeera is a piece of shit for human rights and democracy but this isn't reflected in the output of AJE which feels like it has a good degree of editorial independence. It's not Russia Today by any means.