First problem I have encountered was with burning .iso files on CD-RW disks. I know for sure that writing over is possible on the Gnome version of Felicia.
However, here Brasero (the only burning tool I found) complains:
Please, choose another CD or DVD or insert a new one. The size of the project is too large for the disk even with the overburn option.
The size of .iso file to be burn is 650MB and I wanted to burn it on CD-RW disk where a 700MB .iso file has been burned before. It was no problem on the Gnome version.
I tried to install xfburn, but I don't know how to call it after installation. It is not appearing in the list of options "Open with" if I click on the .iso file I want to burn.
Unrelated question: can I see all 4 virtual desktops in the panel, like in Gnome? So far I have just to do Ctrl-F1-4 to switch between them, and it is not very convenient if one works with one hand.