I bought one a few weeks back, there is a place in the State Forest about 15 minutes from my house that I have never been able to use my phone....I can now...
I only tested it at that spot and driving along in that State Forest road it seems to work really well for about 2 1/2 mile stretch of the road that I drove, I have not tried putting the inside phone antenna up against the phone, I just had it laying on the seat along side of me, so I can not give a report on that, I wanted to go up to the Allegheny National Forest to a spot I know, I only get one bar and can not make any calls from that location, it will be a good test also...but unfortunately I had got sick and didn't make the trip....