Images update system better than older versions, but could be faster again and more comfortable by drag and dropping individual files directly in the main page of the concerned review.
That would be great to be able to "hide" an image in a review, in order to keep information for me, and the client wouldn't be able to see it anymore.
There might be some more tools. Also switching between tools is sometimes a bit non reactive (on windows/firefox)
Zoom system sometimes a bit weird.
Support for pen tablet would be so nice !
When I share the link, clients often think that the second field they have to fill is a password, I have frequent returns from them asking for the password. Review collected by and hosted on G2.com.