One thing I will say about the guy who did the review, is that he apparently has not spent much time with OWB in AROS and MorphOS as he claims here that they are nearly on par...
funny funny. 
I did say in the video, I'm least familiar with AROS out of all Amiga-flavours. It was really just to "show it", I'm much more experienced with MOS/OS4 to be honest.
