Super easy to use, I used QwebIRC's webchat offered by the network I used before in the past. Which is visually the same irc web chat this addon uses. Although, this will resize to fit the width of the forum. And also much more. Setup is super easy, plus the pop chat is a huge bonus. Not using the GeekShed irc network, but it still works perfectly for a replacement of what I was previously doing.
I can also confirm this is working with 1.2