What is the bad and good when i want to apply Wi-Fi 802.11b when my place are full with LAN?

Question

The detail of Wi-Fi 802.11b
Bad and Good using it

Answer 1

The bad is that if you don't secure wi-fi, someone can use your connection and sniff your traffic. The good is that you have have numerous devices connected at good distances wihtout having to pull cable to each location.