I've had my first go with Pandora 1.34 beta2. I used it to create a 'Mode 2' (not sure if that was the best option?), Pandora-style USB of Mavericks - I created it on a iATKOS S3 install.
I installed to a 8GB USB pen drive and apparently all went fine but it didn't even boot as far as chameleon or whatever bootloader it uses:
Was as far as I got!
Some of the Pandora install screens definitely need more or clearer explanation of the options - especially the one which asks you to pick 1 of 3 modes - 'original' (?), mode 2 that has USB3 or mode 3 that drops the gfx drivers during install, or something. Each option needs more explanation of who should use it and when / under what circumstances. Networking doesn't work on my Hack so I was unable to reference the online help whilst I was installing. I was also very unsure if to go for retail or a Pandora install.
Also, it seems that when Pandora asks for the install image, it really means the InstallEMD.dmg, not the full OSX install dmg so it should really ask for InstallESD.dmg specifically.