I've been driving in San Luis Obispo, CA for four months and can reliably make $800+ driving for 45 hours between Thursday afternoon and Sunday evening. Unfortunately this means driving the drunken louts home from the bars until 2:30 each morning - our demand is only high between midnight and 3am generally. Still, I am thankful for the opportunity to supplement my income as a freelancer when I have time between projects.
And I've generally had exceptionally nice people as riders, very few assholes.
BTW: That $800 is the amount Uber sends me each week - after Uber has taken their 20%, but before I've factored gas, taxes, etc.