I like the simplistic interface despite the granularity it allows for. I also like that the scale of pain intensity is accompanied wirh keywords, which supports a consistent choice. I'd really like more extensive output options (individual records additionally to summary) in a more manageable format if I want to make stats/ mine the data myself such as excel/csv. will that be following? I was also thinking that it would be super great if it had the option of a timer to be set, asking daily (or configurable frequency) whether I experienced any headaches (as I often forget to write it down).