Near perfect tool. New versions crash, so I use 6.19.0, as it's mostly up to date (missing Adv. Class Guide) and runs well on my older laptop. Aside from that, the product itself is wonderful freeware and the developer (Adam?) should be thanked for his great work on this. I can't help but wonder if it might be good to break out many of the data aspects into tab-delimited text files (a file for rogue talents, a file for traits, and so on), so that it could be checked into Github as a text-based project, and then all of us could help revise/correct the data -- then Adam can import those sheets in for each build. In any case, thank you tons for the product! It helps tons!