cancer & sagittarius

It says that cancer & sagittarius shouldn't work. It seem to be working fine to me. Can somebody tell me why?

I must tell you to be in a relationship with a sagittarian it is very difficult. Simply because they are always looking for a new adventure. Whether it be in travels, career etc. But on the positive side we compliment eachother's needs. And we've been doing it for 10 years now. I think these two signs work. I'm living proof.

I read a lot about cancer and sagittarius not working out as a couple because they say that we are just two different, I guess that is were we got the saying opposites attract because me and my husband have been together for six years. I guess you just gotta work out your differences and everything could work out just fine.