I have the Focus top for my 36x18 Exo with the 10x10 screen for my enclosure.
It does work much better then the full screen covered in foil.
I did still use foil for the screen but I cut out a circle for my heat lamp and CHE.
I have three sides covered with the Exo backgrounds, but having a glass enclosure is always going to have issues with humidity.
If you are getting the solid top without the screen I would ask them if you can install a RHP on it.
I hope that helps.