I have tested Bryce 5 quite a lot during the weekend and to my dismay Bryce 5 appears to be slower in many areas: - As compared to Bryce 4 the rendering time is longer about 5% - Importing meshes is also slower by about 10%. Many meshes import with artefacts that did not exist in Bryce 4. - overall screen refresh in any mode appears to be slower - Bryce main menu (the File etc.) has a 0.5 lag time (why?) This all adds up. I also feel Corel could have made more improvements on the usability side. Ok now you can open the previously used files easier. But that's about it. What happened to menu shortcuts. Now how difficult is it to make more keyboard shortcuts or even to document them? The new rendering options are OK but honestly they make HUGE impact on rendering time. Make a hundred object scene and add four lights. That's not something out of the ordinary. But the render time is over a week with a higher end machine! Some main features like animation appear to have zero enhancements from Bryce 4. Frankly I was expecting a "wow!" but what I'm feeling is "Is that it?".