This is a very good case for long term or overnight storage. It's sturdy and the feel of leather, I am not sure if it's real leather, is very nice. The layout in the case will allow 2 cartridges and two E-cigarettes. The snap the keeps this holder firmly shut and the whole unit is very slim. It can easily fit into your pocket or purse. The only disadvantages that I found are the inserts in which each component goes into could be a bit snugger. You have to pay attention to how you open the unit i.e. opening the top up and not down, or you could drop the components within. The other disadvantage to the holder that I found is it will not accept the E-Cigarette as a whole unit. In other words, you have to disassemble the unit to place it in the holder. Which means you have to assemble the E-Cigarette every time you use it, if you keep it in the holder. Perhaps an even slimmer lined model that would hold one completely assembled E-Cigarette and an additional cartridge could be in order here. That would be ideal! Still a holder great that will keep your components safe.