I work on the Data team of an acquired startup, working a lot with business/product people. We communicate a lot through internal chat (Hipchat!) and get a lot of requests for adhoc data.
We (the data people) would then run these quick queries, export the results and send over to them in email (CSV).
I find this process very cumbersome, as they'd have to open their email, download the CSV and load them into Excel to be able to see them. Sometimes it's just a small table, and doing this is really inefficient.
That's why we made ShareCSV: They (Product/Marketing/Business) just get a link to click, and most of the time they'll see the numbers they need without having to download anything (and having Excel/OpenOffice to open them).