Tera does this as well, only difference is 1character per class- Although I like the concept of your other characters being able to access say a 'chests' in your home that could work similar and would be fine with that.
Since this game allows you to level multiple classes per a character the gear you would need to carry if both accounts had multiple jobs leveled would be much more than a game that has 1char per class so I don't necessarily know if I would like all 3 of my accounts sharing retainer space.