The main reason for using this product was to keep track of my clients, but I quickly realised how easy it would be with their other features too! It's simple yet very effective (and free!). There weren't any downsides at all - just as you said there might have been before-hand. If i had anything negative about them they'd probably not exist anymore or maybe even come back!! We're keeping our entire HR records up to date now; we need an efficient way without going through loads of paper files/spreadsheets etc., which can take hours each time if done manually via Excel sheets!