Hi,
I spent a lot of time developing web forms. Hope that post will help you to make web forms easier.

On the creation form is:
"

2 Fields Selection

Select the field(s) to be displayed in the web form""

I had to develop few very symilar forms then I "selected fields to be displayed" only on first form that i treated as a template  - becouse i knew that rest of forms will have same fields - I genereted next forms without fiels only to copy KEY of the form and change in first form that I used as a template.

It turned out that in fact these are not only fields to be displayed but fields to collect data - if there is no any field selected on form it will not collect any data - you should disallow to generate form without any field selected.

I called support few times and got a message that Autoresponders dosn't work on Profesional edition - it is not true - AUTO RESPONDE RULES work on Proffesional edition - I think that you are not specified enough and you think about AUTORESPONDERS FOR DRIP MARKETING, but it is not the same as AUTO RESPONSE RULES FOR WEB2LEAD FORM.

Field "domain" is not clear enough - there is no instruction that we should use STAR *. I tried to provide domain but it doesn't work.

HTH
Best regards,
p