I had a horrible experience with the microcell. I was only getting 1-2 bars of 3G coverage in my house. When I brought the microcell home and hooked it up, I was getting 2-3 bars of microcell coverage only. There were times when I would only get 1 bar of coverage. I called AT&T and spoke to one of their reps. The rep told me that they do not guarantee 5 bar coverage with the microcell. She said that since the coverage increased by 1 bar (from 1-2 bars to 2-3 bars) that the microcell did it's job and I have nothing to complain about. I informed her that they need to change their advertising for the microcell because when I walked into the AT&T store, all I saw was 5 bars, 5 bars, 5 bars! Needless to say I will be taking it back tomorrow and getting a refund.
I've not seen my microcell get less than 5 bars unless the system is down which I haven't seen in awhile.