Jason,
I've reverted back to using Form Builder 1 for the time being. The main errors I was experiencing with Form Builder 2 were things like it wasn't applying the CSS updates in the actual file e.g. I changed a form width from say 700px to 500px, in the Wizard it would show 500px, in the actual CSS file though it would remain at 700px. If I edited the CSS file by hand and then needed to change something else in the form it would then overwrite my CSS file and revert the form back to 700px again.