This plugin is best front-end tool to allow users to upload file with contact form. File uploader can be configured in many ways.
Big problem! I can't create a form, i can't modify an old one. I'm using wordpress 3.6 with multi-site.
I made a comment in the support forum for this plugin a month ago about a small issue, with which the plugin was still functional. I did not receive any feedback and after just installing the update for the latest version have more problems so that now the plugin doesn't serve it's purpose at all. See support thread for spokethethunder.