A new app lets you define any of your image editing tools as de facto extensions to Photos. That helps make a little more sense in using Photos. Even so, I will likely stick to Lr plus its plugins.
http://www.macworld.com/article/309...w-every-image-editor-is-now-an-extension.html
http://www.macworld.com/article/309...w-every-image-editor-is-now-an-extension.html