Though not quite as user friendly in the conditional logic department it is much cheaper and integrates with the site much better than just embedding an adobe form. Also since a number of "i" devices have had trouble with adobe forms it will be interesting to see if this allows a greater number of users access to our forms.
I needed some support on a format issue and the response from email was quick, solved my problem AND even solved another problem I didn't have since they looked at my form before answering and saw something else I needed help on. I wouldn't have had the issue at all with Adobe but then again I was paying 10x as much for something that didn't work on all devices. I feel Formidable was an upgrade.