Useable to play around but not usable in production systems without fixing bugs

I really like the approach that this plugin is having. I was impressed by the features and would really pay 100$ for these features…but I had to correct JS errors by myself to make it work.

Even by deactivating all other plugins and using the standard wordpress themes this plugin was not able to send email, show the preview in the config area of the form creation menu etc. . Also the updates are having issues that I had to fix myself (what is not the first idea of having a plugin).

I want to give 5 stars for the effort the developers put into this big and free plugin, because I am a developer myself and I know how hard it is to create such an big thing and make it work in different setups, but I can only give 1 star when I see it from a user perspective. I never had such an buggy WordPress Plugin before that had so many downloads.

I hope you can invest more time into fixing standard issues in the future. If you offer a full working plugin that is working out of the box without help from your side or by fixing code, I would pay you the 100$ in an sec. .