We've been using ReadyAPI for a long time with wsdl/xsd files and many of the users are very happy with the Form editor since it automatically arranges inputs fields when using large request. It make...
I might add that the openapi definition files we're using are version 3.0.1 (currently not supported in version 2.5 of ReadyAPI) but we simply edit the version number from "openapi" : "3.0.1" to "openapi" : "3.0.0" in the openapi.json definition file.