The pelican is a guarantied unbreakable case. If you are a heavy smoker, you may want both the PCC and the Pelican. If not, one or the other will do. I carry both with 2 3ml bottles in Pelican instead of USB charger & 1 3ml bottles so I can change flavors.
Note: IMHO do not get the new improved atomizers at this time...too much controversy about them. You can't go wrong with the classic version.
Thanks a lot for clarifying. Could you help with some other noob questions? Is 510 a pen-style e-cig? What's the difference with pen-style or any other types? Just the battery sizes?