@DrWilsonM
so far it does work good for me, it does support CID53 flashing and GDFS backup.
However, FSX has not been coded yet so you can't put in flash menus :(.
I do use jdflasher+FAR to access the FS and put in menus and stuff.You can give that a try.

@infin1ty13
i have connected and flashed 2 of my phones in linux and everything went smoothly, and afaik there has been no reports of dead phones yet.However, it is a beta and you do have to use it at your own risk.