Seems quite skinny on info about indexing. It nabs your login and stores tokens to the sites you want to index then... does it just spend CPU days running in your browser downloading and indexing all that data? How much storage do you need locally to index what can potentially be massive amounts of data in most corporate information sources?

gb's of storage, potentially 10+ for very large datasets.

Minutes, not days. Very big data sets might take 30+ minutes (or even a couple of hours), but usefulness starts in the first few minutes (because of the priority algorithm)