I'll be honest, I haven't actually used it on a project yet. And GitHub says I starred one of the Verbal Expression repos about 2 years ago :)
Looks like there's been a lot of new ports since I first saw the project.
And yeah, regex is hard to get correct. You might also find the various regular expression visualisers useful. When working with regex I usually compose them in a tool like Expresso (it's free, but you have to register with them to get a free key) as I can test the regex without leaving the tool.
No worries at all. Please feel free to let me know (either by replying here, or via PM) if you have any other questions.
There's some short videos on egghead.io that may interest you. Perhaps starting with these javascript videos?