I've always read that normal users should stick with AdobeRGB and not use ProPhoto for the working color space. But why? Does it affect the ability to edit and make sense of color changes?
I ask because Lightroom sends work to Photoshop using ProPhoto (by default) and there are also considerations to not use different color space for image and working. In fact, PictoColor does not work unless the image profile matches the working space.
So, why not set Photoshop to use ProPhoto for its "working space"?