anyone use landlord key system or also called master key system?

[Tina Lee]

Hi all, any landlord with more than 10 properties, have you have experience of installing master key system/ also called landlord key system one your apartment?

My new locksmith try to convence me to install those system on one of my unit and might be others as he explaint to me I keep one key for all units as master key. And each of my tenant has a different key.

Any advice on those who used those key? Are they worth it?

They are double of the price of normal key.

I do find every interesting the idea. However I wonder how practical is once we actually use them. Any cons?

Thanks