As discussed in the meeting yesterday - here is the info around Microsoft Power BI. Power BI | Interactive Data Visualization BI Tools
This is an extremely powerful tool which allows you to manuoulate and data mine into your CRM, Marketo, and local data. best of all the Desktop tool is free and the server component is also free for up to 1Gb of data.
A video of it in action is here: Marketo Enhances Microsoft PowerBI with rich marketing and customer data - YouTube
Information on the Content Pack for Marketo is here: https://powerbi.microsoft.com/en-us/documentation/powerbi-content-pack-marketo/
NOTE: be VERY cautious of number of API calls you have as this service can burn through them if you are on a large instance. Unless you have purchased more the # of API calls is 10,000 per day.