What are you wanting to use it for?
Landscapes, portraits, wildlife, sports etc etc etc??.
Portraits please
Bear in mind that the 18-135 doesn't have VR so if you are a bit 'shaky' you won't get sharp results. It's no longer available new either as far as I know.
Al
Good spot Al, and the 18-105mm does come with VR which saves many of my shots from my shaky pensioner hands lol