I find that Ninja Forms is good, but they are definitely pricey as you go from $100 for 1 website (for the all access plan) to $200 for 20 which is a huge (and crazy) jump, IMO. I know @mredsanders that you only got the small add-on – but what if you want to add more functionality in future (ex. file uploads, conditional logic, etc.)? Then you’d have to shell out even more money in the end you pay more than $200. Gravity Forms’ prices are more gradual. I would’ve liked to try it but have already invested oodles of time styling and getting Ninja Forms working “just right”. If you’re starting from scratch, I’d consider Gravity Forms.