Did exactly what I needed in a very short time!
Working with Omar was extremely smooth and pleasant. He definitely know what he is doing. I tested two freelancers at the same time and it was a difference like day and night. While Omar was able to work with the spreadsheet I had provided straight away, the other freelancer had a lot of extra questions, found excuses why the analysis wasn't working and fell silent without even letting me know he couln't complete the task. Thanks, Omar, for being such a professinal and so easy to work with. This is definetely not the last time! :-)