What do you like best?
What do you dislike?
This is a start of something new - bringing Neural Networks to web browsers, which really opens a new window for experimenting. Instead of counting dislikes I am focused on the advantages it provides. I am happy with the whole experience and have no complaints!
Recommendations to others considering the product:
There are much more such libraries available that helps you to play with machine learning models on browser, I advise you to please try those and experiment around them. As this things are very useful and emerging I also request everyone to contribute to such open source libraries and help the community grow.
What problems are you solving with the product? What benefits have you realized?