Very simple to use but, it can get a little tricky at times. I think it would be a much better experience if they added some features such as ... 1) CSV import/export for weight, 2) Sync water consumption with Google Fit (for premium users), 3) Add an app for WearOS smartwatches for quick & easy access, 4) Quick add option so it is faster and more convenient than searching for a specific item.