I've been playing around with h5p on my site, and it works really well with wordpress.
Primaraly I've been using the hot-spots, like here: http://oljenytt.no/?nessio_gl=tofasestromning
There is one little thing that annoys me a bit, and that is the headings of the hot-spot-text. If I'm looking at the site I linked to, the headings are sometime cut short when viewing them on a small screen, or even the ipad. Not sure how to fix it, but it is a bit annoying since it ends up different at various screens, so it's hard to predict when creating them. Not a big thing, just thought I'd let you know.