Same as with any Software... In my opinion(Which doesnt amount to a Hill of Beans) Its a Very Healthy step in the right Direction for DazBryce...Most of us for years have been Loudly screaming for Poser/Creature support in some way...We have it to a Certain Point(And I am sure DAZ is working on Full Intergration Of Poser/Creatures for Animataions) As to the other Improvements...Well I am So Estactic that I am Laughing as I make a scene now in OPENGL and for Placement of trees Especially 2D trees its a Blast no more rendering to see if it is in the ground...You see it is.. I definitely see a 30% Plus Faster Render times on Most scenes...Yes a few are Longer but the Difference in the Over all Renders are Slightly to the Better in 5.5 at least to me... The Biggest thing is the annoying Bug fixes which are tooo numerous to think about...Hey no more being late for work because Bryce made time stand stilll........... Just my Humble Opinion...