I like that it's easy to use, has many features (such as calculating historical averages) which are not available in most spreadsheets out there today! The interface could be more intuitive - sometimes you need help figuring things such an how much space should go where when creating graphs or tables etc., but these issues can easily been solved with some training from support staff at Microsoft itself if they're willing/able too provide this service free-of charge!! Very good product overallβ¦