Overall I think the improvements in Poser 8 outweigh my personal dislike for the Poser 8 library. And from what I can tell from the PoserPro 2010 Beta, PoserPro 2010 will be an even more  significant advance. That said, for regular work I still user Poser Pro (not the 2010 beta). Why? Because there is a bug in both Poser 8 and the PoserPro 2010 Beta that causes the application to crash 95% of the time whenever I open an existing scene file from the File->Open menu item. It doesn't crash if I open the very same .pz3 files and select "Open with..." in Windows. I submitted a bug report for Poser 8 about this when it first came out, but I got so tired of the response being "It will be fixed in the next Service Release" that I just gave up. (I also submitted a bug report on the PoserPro 2010 beta.)

 I know it's a bug in Poser because I used a few different  Microsoft developer tools to actually track down where/when the error was occurring (which is a little difficult when you don't have source code -- it would be nice if they built in a debug mode that would allow users to actually create some log files that might be of use to the developers, but I digress). Both applications follow different paths through the code depending on whether you use File->Open or "Open with...". If you want to see it yourself just get Process Monitor from Microsoft. The point of all this is that all the UI changes are very nice, but it would be nicer still if a little more time was spent on improving the stability of the code. By the way, one of the rules we use at my company when we develop software is that anytime an application crashes, by definition, there is a bug in the program. It may be that you can't fix it because of limitations in the OS or third party tools, but it is a bug in the program none-the-less.