I am thrilled with this app. I purchased the Excel add-on and have loved this program. I have used it mostly for my sales leads spreadsheet, which has multiple tabs, and it is incredible to make changes across multiple tabs in seconds. I can't wait to see the possibilities of what this app can do for me! As an entrepreneur, being smart with my time is of primary imporance and this app is absolutely helping me with that. Highly recommend. One last note - great product support. I connected directly with David and am very impressed.