Recently my AT&T service at my home has been terrible, especially in the basement. It really has never been this bad before and have no idea what happened. I have been looking at getting an AT&T Microcell and just have a few questions. Does anybody have any experience with one of these and can suggest if it is a good addition or not. Also do they last a long time because I am probably going to buy a used one. Lastly, what is the range like? Anything else I should know? Thanks.