I guess you should know that I do think Version 6 is slower on things like erx, but I have used many beta versions with bugs and AC has fixed each bug as we found them. Now I never have dealt with issues like the TSP printer.
I have just finished meeting the MU requirements and all in all am doing fine with Version 6. I don't like some things, but I like that it is still the core program that I have been using for almost 10 years.