PyTorch 1.0 is just fantastic. A shameless plug: we (fast.ai) are also releasing fastai 1.0 for PyTorch today. fastai makes a lot of stuff in PyTorch easier to use, whilst allowing full customization with PyTorch code.
http://www.fast.ai/2018/10/02/fastai-ai/
edit: just noticed someone has posted the above link to HN and it's on the front page, so I guess follow-ups should go there instead https://news.ycombinator.com/item?id=18123587