Would love to hear how this new feature works. Marketo gives you a great overview of how to set it up, but they don't actually talk about what it does once it is set up. Since counting Marketo form submits as adwords conversions has been something I've needed to do since time immemorial, I hacked together a system whereby some javascript on my landing pages will fake a web page hit in Google Analytics, and then I tell Adwords to count any views of that fake page as conversions.
Does this new feature do anything beyond what I'm already achieving with javascript? If I turn it on, will I start seeing duplicate conversions? If anyone has tried it yet, I'd really like to hear about it!