Integration with WordPress is awesome.

I tried DW Q&A and was disappointed with the editor not being what I normally use to add pages & posts. This Echo KB is very clever. It creates a page and then that one page has a dynamic link to the KB application. All my plugins I use for the editor remain intact and the KB creates a subset of categories and tags specific to the KB.

My only wish list is perhaps:
1) easier way to organize multiple KB
2) better accessibility color schemes. I had to re-do some of the default colors so they read better and have higher accessibility score.