I like that it has so many different features from basic image manipulation right up through advanced 3D rendering! It's easy enough even if you've never used this software before but still powerful once your comfortable with its interface (which can be confusing at first).
There are some things about UDAT which could use improvement such as more tutorials or better documentation of how certain functions work - however they have plans underway already according their roadmap page here : https://www2.universaldatato...