No, I haven’t learned but my friend has started learning so he was sharing his experience with me so I come to know that there are so many similarities between both the languages so we can easily learn them.
I’m Spanish, and I have also learned Portuguese. Yes, once you know one of them, the other comes easily. Of course, you must be aware of false friends, a common problem in very similar languages… But syntax, grammar, conjugation and vocabulary are real similar.