I like all aspects about this product - its flexibility/customization ability (it is very easy create custom forms), price point if you are small business owner or freelancer who provides services as well instead just products etc., ease-of use / simplicity once set it going , no need extra staff . The only thing i dislike slightly so far but dont know how much impact would have when we scale big time using pro account which requires significant amount cash inflows per month). is pricing model where one needs upgrade his plan after certain number(5?) customers added under same customer group. We recently got our first client through Curbly & now working fulltime helping them manage their proposal process effectively via automation.