The program in general is very, very good when it comes to bugs. There were only a few I've encountered, but they were in places where I encountered them far too frequently and they had far too negative an impact on my work flow. Such as, the bad UVmapping on cylinders, or the group names deletion bug. Both of these would turn a five-minute modeling job into a twenty-minute agony. The only thing that would be worse is dealing with the learning curve and the new bad habits of a different piece of software! So I'm not shying from C6 because I fear it might be buggy. I simply have other priorities for my very small budget. I can't justify it for Poser figures with hair. I could justify it if I could make models faster and more efficiently -- and for that, the roadblock is whether any of the identified problems in C5 have yet been addressed.