Personally, I thought it was a huge success (not perfect but very successful). The battle is easy to read, it only took an hour or two of our time, it ebbs and flows and it was fun to do! Yes, this one was not filled with a lot of technical whirly doos and it only included two characters, so more testing, of course, would be needed to make it a viable option.
Pros: It was fast, it was fun, and the results are a pleasure to read. Cons: It was hard to coordinate a time with just two people. More than one would be difficult indeed especially if people are using different chat platforms.
Next up: The (E) Threads.
Here are some observations I have made so far.
It takes a minimum of a week for characters to meet each other if they are frequent posters (one post is made per day). On that note, momentum is very hard to build. It could easily be months before characters are even on friendly terms with each other. Possibly these beginnings should be treated in the same way as battles: fast. Too much time is spent getting preliminaries out of the way and then people seem to get lost and not know "what direction to go." I would argue that 85% of all rps are introductions and a small percentage of that actually moves on to the meat of the story.
Leading a thread takes a lot of concentration. A person should probably have no more than one section or three boards or...maybe just one specific job to take care of.
When leading a thread it is far better to have a post that informs inaction than to be inactive. For example, if a character attempts to interact with the environment and nothing happens, it is better to create a post that says, "nothing happens." then to not post at all.
Some rpers are capable of handling more than one character and others are not. I think we need to handle these cases with care and thought.