Hi there. In thinking about buying myself a powerline wpa4221 kit but i have some questions about it. Does it work through 2 different distributors( not sure if this is the right term for those boxes in the wall with various buttons and such where you turn the electricity on and off). Its the same main account for the eletrical company and i assume they are all connected to a main one. So what you think? Should i go for it?

Thanks