Who I have the same questioned this solution

Here's an example of the super-awesome reception I get when I'm in the same room as the signal booster/extender.

Also, the only reason my battery still had that much power remaining is because I'd charged it earlier in the day. If I don't do that when I'm at home most of the day, then my battery will be critically low by the evening because the phone keeps struggling to find a signal.  Lovely.