I was looking for a tool like this here on appsumo for a long time. So I purchased the higest tier right away.
The tool does the job. There are a few minor improvements possible. Like for example, when I download a resx (Microsoft resource file, it would be nice, if the file name already contains the language code like de-AT, because in any case you must rename the file like that in order to get it recognized by the .net framework)
I can probably make a few further minor suggestions, if the owner is interested.
But overall a great value for the money. If you need translations from time to time, I would buy this.