Cons:
- Requires assembly time, patience and leisure
- Different sizes and long key "spoil" a little optics
Pro:
- Very easy
- Takes in the pocket little space
- As opposed to a key case fast access to the right key
- More visually appealing than Keys Mart.
All in all I'm very happy with the Carbocage - contrary to expectations, let yourself "hakelige" good door locks open with the integrated keys.