What problems are you solving with the product? What benefits have you realized? If you use MacOSX it's already included and does some things better than excel but it's not a replacement. Recommendations to others considering the product:
It's not a replacement for excel, although it is a spreadsheet it's quite limited to basic stuff as most macros only work with excel The selection of templates is just amazing, ready to use with less than 1-minute customization. When doing quick things like a schedule or any template included or created it's just faster than excel or any other option, has great presentation built in so even something created in 3 minutes looks great and ready to send.