I am trying to decide between the two of these repeaters.. I have a weird thing going on in my house where i get NO SIGNAL but i get 3 solid bars across the street.. I do occasionally get 1 bar in the house, but i cant do much with that one bar.. So here are the two i found to be the best in my price range: Wi-Ex zBoost YX510-PCS Spotwave Zen the thing with the spotwave zen is that it is sold at bestbuy which means that i KNOW i can get my money back if it doesnt work. I can just shove it back in the box and bring it to the store. I also read in some places it gave more coverage when moving away from the base. the zboost also has some good reviews (i dont always trust cnet reviewers though) and it seems that it is of good quality.. the only thing bad about it is it says there are lots of installation requirements.. So has anyone used them before?? or can you tell me by looking at the spec. if one is better than the other for ATT? i am also going to call ATT and see if they suggest one. It was suggested to call a carrier in an article i read.