The ability to change from an HTML form into text or vice versa is brilliant! It saves time, it cuts down errors in terms of typos etc as I can quickly see if anything needs changing before sending out my emails (or not!).The lack of custom fields isn't something that's been addressed yet but hopefully will be soon - this would really help for certain campaigns where you need more specific information about your contact than just their email address/name which could easily get lost within other forms with all those extra options available now-a-days!! Great software once set up correctly; very easy interface too so anyone should have no problem getting started straight away!