Very impressed.

Spreadsheets have never quite "clicked" with me, but this did. It exposes a lot of functionality that your average person would want out of a spreadsheet in a much friendlier way.

I am really curious on the "database" side though, can this handle a couple of tables with 10k rows linking to one another? Maybe an API that allows me to return JSON with some query language? If so, would be a great tool for CRM like tools and any small/medium data set where a nice UI for editing would come in handy