There are issues that develop over time with the spoken commands, and occassionally with the re-equip subs, but I have used it to work up maybe 20 toons.
The version I am currently working on uses party tools to choose targets, prioritize cross heal targets, manage ROT timing and skill caps. It should work for any number of toons simultaneously. I have been testing it using three toons beating on each other and trying to perfect a formula that compares their relative states of injury to heal the right toon at any given moment. Its taken a while to get to work smoothly, but it has applications outside of this context. Once I have everything working like I want I will build some menus and automated setup and post a complete version. IMHO it's already a lot more powerful than fighting a golem.