As an employer, I would not turn down any ex-Uber, as long as he or she did not trigger warning lights during the interviews.
Just focus on the technichal side and the money. If you feel good every morning when you wake up to go working for them, then stay.
If not, then that would make a great explanation to your next employer for him/her not to consider you a job hopper. Along the lines of "I quit at Uber because, as you very well know, the culture there was toxic and yours looks much more interesting, blah blah...".
Good luck!