r/MachineLearning - [D] PyTorch and TensorFlow

I've seen a lot articles about people switching from TensorFlow to PyTorch, but not the other way around. We can have a good understanding about the strengths and weaknesses of the two frameworks if we could hear stories from both sides. I'm one of the people who are slowly moving towards PyTorch, I would like to know more before rewriting tens of thousands lines of old code. Even if both frameworks are similar, there should be far less people switching from PyTorch to TensorFlow because PyTorch came later. So, to have a good discussion are there at least people who are on PyTorch that are considering TensorFlow or people who are regretting switching to PyTorch?