I've been using MULTIMEDIA 5 since it's early beta stage for my client projects as well production of corporate videos (which is what i mainly use this software).
The tool has so far performed flawlessly with no issues reported by clients or myself during our work together in creating their marketing collateral materials including website design layouts/imagery etc.. It can be quite daunting initially but after getting used you will find some great features like timeline editing which makes your life easier when working collaboratively online via multidisciplinary teams! Not much dislike about other than maybe more intuitive interface would have made things even better :) Definitely worth trying out if looking into tools similar product such us Adobe After Effects - definitely check them all before making any decisions because they are very different from each others feature set & pricing structure!!