I think you should use several resources to prepare (though not too many). PMBOK 6 is essential and Rita's guide is really good. I would recommend you read both.
Congrats, Joao. So most questions were short instead of long winded questions? The fact that you finished in 3 hours probably meant that the questions were short and even spending more time reading the questions, your answers wouldn't have been changed
Congratulations, on passing your exam. Since PMBOK has been changed and so are the exams, Please guide, if RITA's still helpful or PMBOK 6th edition could be the only source for updated contents.
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