Good for the price

This is a good addition to Photos to make it easy to send your photos to an external editor. It does this really well. Sadly this can also be easily created via Automator actions. I was hoping that it would import the image once save in from the external editor but it doesn’t. You have to select the image to replace the original image with in Photos. This is still handier than what Photo’s enables you to do. It would be nice that in future updates the developer enhances the communication between this app and editors. My suggestion would be to create a temp folder with a new version of the photo that is then passed on to the editor, and if you save in the same location, this app would then automatically handle the replacement then delete the temp version.

Pros:
Adds functionality that is missing in Photos for sending your photos to an external editor; easily.
Pretty much works with every editor.
Although the exporting to external editors can easily be created as an Automator action, this app adds the functionality to, though clunky, to bring the edited photo back into Photos. This would be hard to create an Automator action for that would be reliable without scripting
$0.99! - can’t beat the price

Cons:
Worthless documentation, took some time to figure out how to get the updated photo back into Photos.
Would be nice if the app handled the transfer of the of the updated/edited photo back into Photos.

Summary:
Worth the price, give it a try, toy with it for a bit before giving up and you will find it adds functionality to your Photos workflow.

JBManic about External Editors For Photos, v1.1