I like how easy it was for me, as an amateur in this field of software development to use its features with ease (it's very intuitive). It has all you need! Nothing that would make us think otherwise about using dia at work or home. The only thing i dislike are some bugs which can be fixed by updating your system but not really something we'd have control over since our computers aren't always up-to date so sometimes things don't go well when trying to update them etc.. But overall everything works fine once updated correctly. We're solving problems related to data visualization/analysis, mainly because people tend to forget what they've done last month if there isn't any sort of record keeping involved.