IntellobuY does what it says on the tin - give you an accurate estimate for your material requirements within seconds! It's easy to use with all kinds of fabrics so I can't think of any downsides at this point. The only thing was that when we first started using Intellobuy, there were some glitches but since then they've fixed them (I believe) - if not just make sure that everything is set up correctly before you start uploading data or else you won't receive updates from intelliBuy as often. We needed something simple to be able to input our stock levels easily without having to go through multiple spreadsheets etc. This has done exactly that; saves us valuable staff time by being able to update stock instantly!