Review and Testimonial needed for a beta spreadsheet app

Hey guys, I'm looking for a handful of legitimate companies to give a honest review/testimonial of an online spreadsheet app thats in closed beta right now. The app has some neat functionality for searching across multiple spreadsheets and selectively sharing certain rows and columns with other users...without having to share the entire spreadsheet. I'm looking a handful of companies from various backgrounds that makes heavy user of spreadsheets in their normal day to day workflow. I will be paying $50 for each company that will use the app. Here is what you need to do, i) figure out where exactly the app would be useful for you in your workflow. If its something that will be useful for you. You will be given lifetime free access to the app (worth $150). ii) get free accounts for others on your team as well. iii) you will get an exclusive Blog Post, Tweet and FB Post about your firm's use of the our app. (we will do free marketing for your firm). iv) You will be asked to do a video testimonial about your firm's use of our app where you can show off your firm and and its services to our customers/audience(more free marketing). v) Your firm and your testimonial will be featured on our app's home page.(more free exposure). Plus if I havent mentioned to you already. I will be paying you $50 for this! Only requirement is your firm should have a good web presence and a decent presence on twitter. You can be involved in any industry. We are looking for only a handful of companies. Feel free to apply if you are interested. Thx!