My initial impressions - in an unfiltered, stream-of-conciousness "Ignore if you like" form:
- Why would I pay a per month fee for an Excel add-in?
- The visual examples - the screen width was so wide that I had trouble grasping how I would use this to see the big picture without zooming out (as you did)
- At no point did I understand why I needed to use "the cloud" yet the pricing implies that I do
- The Prezi demo took a long time to load
- The Prezi demo showed me one thing: error handling. That's an edge case though isn't it? The question is, "Do most people who work with Excel spend most of their time trying to spot/correct errors in spreadsheets, or do they spend most of their time trying to understand the data in pristine spreadsheets?" I'd argue that it's the latter.
- I have absolutely no idea about how it works with a sample data set. This is very important to me.
That's just my random feedback. Maybe it's useful to you. it seems like a cool product.