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I am just fed up with UFT, which I often encounter strange problems that can't get a reasonable explanation about. Especially for data driven frameworks, the scripts start to behave unexpected after about 10-20 iterations reading from the datasheet. So I am glad the company starts to switch to something else.
Thank you @PeterMasiar for the answer. That encourages me to be not afraid of spending too much time on learning C#. I have learned a few languages, including Basic, Pascal, C, COBOL, VBScript, Python, etc. but definitely not reaching 10K hours with only possible exception of COBOL.