Hey Jess!
Thanks for the kind words about the plugin 🙂 Your interest is appreciated and I’m happy to answer your questions – which I’ll do in reverse order:
Yes, you can add forms and any “normal” post content to Events just like you would a “normal” post, page, etc. Events come with a full-on content editor so you can add shortcodes, forms, galleries, etc. – pretty much anything, as long as it works with your site in general to begin with!
As for your question about recurrence patterns, until next week or so there really wasn’t much that you could’ve done about these free-form recurrence patterns…
…However, your timing is impeccable because free-form recurrence is one of the biggest features coming in version 3.12, which should launch next week if all goes to plan!
We sent out an email just this morning detailing the 3.12 release, you should definitely give it a read to learn more → http://goo.gl/kru4CB
I hope this information helps!
Cheers,
George