I bought one for the guy I took my concealed class, from. He couldn't justify it yet, and he teaches a fair amount of women and elderly. I just asked if we bump into each other at the range, I get to try it. I am more a exposed hammer guy, with a decocker, but have been tempted by the idea of the EZ nine. (if it were a double stack, I would have jumped, but am not the target audience)
I think it would be a good trainer for certain family members, as well as showing the choices between safety and decockers, magazine safety, etc. I have a friends elderly mother, who I think might be the right one for one. My hope would be an easier gun to shoot, might mean they actually practice more, so if they actually needed it....