All news is biased in some way. Aljazerra is considered by other journalists to be a reputable news outlet, at least the English speaking portion. I think they were originally the BBC or some other British news and then they were bought by Qatar.

I'd say they're more reliable than most mainstream western news sources because they don't have to fear repercussion for criticizing Israel.

Jews might not realize this, but when they persecute people for criticizing Israel, all they're doing is causing more people to shift from anti-zionist to anti-semite.