Is it possible to add parameters to the redirect URL? I would like my redirect page to reference some of the form data. Unfortunately this is a show-stopper for me.
This is actually possible, though only for our professional subscribers (and is a bleeding edge feature right now, we're still arguing over the exact formating of the access formula). If you are interested in becoming a pro subscriber, you can view our pricing page, and we should be rolling out that feature officially sometime in the next 30 days.
Actually my company has a pro account that we use with SalesForce. I am doing some integration work and I had to create my own account on the forum here. Our subcriber # is S-2K973794662125846. Site9, Inc. If you could get in touch with me via email and let me know how to access the bleeding edge that would be great.