Easy to use for both users as well customers who need it quickly; simple interface makes data collection easy even if not technical savvy or have no prior experience with this type of software product - can be used by anyone at any level in an organization without having extensive knowledge about IT systems.- sometimes takes long time during updates/upgrades (not sure why) but when they are done everything will work smoothly again- great tool! I am using Carbon Checker 3D version mostly because its easier than other versions available online like we4Recycle & others-. It's very user friendly so less training needed compared to some complex programs suchas CO2Solutions which require more intensive trainings before people get familiarized how things works within their companies.