Whilst some of the feedback about the room / dimension / floor plans and the photo quality etc are what I'd call constructive criticism, I do think people should hold back on the comments about drab, dated décore etc. If people can at least read the OPs comments they'll see that there is absolutely no option to change any décore, the exH is living there and @CinnamonSwirlLatte isnt going to gain access to the property to change any of that, so it's brutal making those comments when this whole situation must be really painful time for her, and being powerless to even access the former marital home.
@CinnamonSwirlLatte if you are 50% owner of this property can you get a solicitor to represent you to be able to appoint your own estate agent, so you can control the way the property is presented including floor plan and photos. They will need access to do all the measurements, which may need your solicitor to be involved. It means you won't have to deal with your ex directly.
our last property was being sold as a consequence of a divorce and it did take quite a while for one party to cooperate with the other and to stop blocking the sale, even though the other party was keen to accept our offer to move on with their life. It took a solicitor to step in and make things a bit smoother as the property was the main marital asset.