What are the known limitations?
As of right now, there are several:
- This plugin assumes that the comment form has an id of "commentform", which is the WordPress default, but if your theme overrides that then this plugin isn't going to do anything for you. There are plans to remedy this, but I won't go to the trouble unless you ask for it.
- There hasn't been much consideration given to they styling of the modal display. It may not work very well with your theme.
- There is absolutely no customization options nor settings for this plugin. If you need options, please ask and I will do my best to implement that.