I was a little skeptical before buying this cell phone signal booster. I wasn't sure if it would be a whoo-hoo or a bust. Thankfully, it's turned into a whoo-hoo. I mounted the antenna in the attic after scoping out the best location with my cell phone. Ran the wire through a conduit that (thankfully) our builders put in running from the attic to the crawlspace. I had to extend the cable that was provided with a fem/fem connector and another length of 25' cable. Ran the cable up into the kitchen cabinets and placed the unit inside of a cabinet (where thankfully again our builder had provided an electrical outlet to connect to power.) The unit is now sitting in a central location on the first floor and the cell phone signal has gone from one to two bars at best to full bars in the kitchen and three everywhere else on the first floor. Calls have gone from a 60% drop rate to a 0% drop rate. I bought the YX510 so that visitors would also enjoy the benefit of increased service no matter what provider they were on. I think that if you're able to set the unit up as intended (as I was), you will be very pleased with this product.