My company has a very high requirement for this cell phone amplifier to keep in touch with our customers. We have two office buildings that are all metal and the cell phone signal will not allow us to use our cell phones even with the tower less than two miles away. Cell phones are the major communication line with our outside sales and owners of the company. We did have a minor problem with one that failed one day and that was a hectic day since you had to step outside to talk on the cell phone. The Wilson dealer that we bought the unit from handle the exchange very quickly and we where back up and running the next day. The units are also very helpful when we our primary phone line goes down to weather and have calls forward to our cells phones. Yes I would recommend this product for someone that requires a very good cell phone signal if you want to keep in touch with the outside world.