The best thing about comet is that it provides all in one place to run your experiment with multiple data sets at once! You can also easily share/collaborate between users using shared notebooks or even via webhooks (which makes life easier when having more than 1 user). I do not like how sometimes there are some issues related to performance of running an analysis which slows down my work flow but overall everything works fine as expected from what i have seen so far. As mentioned earlier this tool helps me manage different models within single notebook by sharing them across other people who may be working independently without affecting each others' workflow too much.
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