Hi,
I am a partner with Uber. I can say it is lucrative if:

You can drive it yourself!!!! thats the best option if you are not currently employed or..
You have an honest driver (they could easily go off line and use your car as cabu cabu or not buy the amount of fuel that would be needed per day), like am not trusting my driver right now..
You have a car that has good fuel efficiency like the toyota (but it is not limited to toyota, i use a ford escape)
You your driver would be hardworking because you work early morning and late to make money, during the day can be dry sometimes.
Your driver is willing to driver weekend at certain time like sunday, the rates are higher.

I dont think the car has to be black though..

had a not too good experience too. a friend of mine wanted to open an account and drop 1m naira immediately, but the customer service lady@ ogudu branch was not eager abt the potential customer at all, probably cos we did look like we wanted to bank that much, eventually the money was of course taken to the friendly bank GTB. i think they should do more ''innovative training'' for thier CSU