Hey there, I'm not aware of any specific issues but it's impossible to be 100% - this add-on has been production tested and been through a rigorous PRB review, so there should not be any issues within the add-on.

If you try it and this add-on does not work then we will certainly investigate and at least be able to see if the issue is with your pre-existing image gallery.

BTW - we are looking to develop and image gallery as part of this add-on so that may be something you are interested in.

Cheers
Andy