Its easy and seamless integration with PyTorch lightening and simple API usage. The model (artifact) and logs logging also help me trace back a model that was training months ago.

This tool is perfect for logging information from programs, especially during training. It allows you to see how your model is training from anywhere in the world. I like how you can just dump some raw data onto the platform, and then you can make your graphs and manipulate the data separately from your training loop.

That it is super easy to log all metrics, loss curves and all different kind of data and to get that data visualized in an interpretable manner. I really like how it is integrated into other frameworks like eg pytorch lightning. I use W&B almost daily, at least I haven't started a single training run without using W&B ever since I subscribed.