Not very often. Probably once a month when I feel like getting drunk and nobody wants to be the designated driver. it's not that student budget friendly though otherwise i'd use it all the time.
I use Uber once a week or more and I would say the same for my friends. I also have multiple friends who have sold their cars and now use Uber daily to get around which still works out cheaper than paying the monthly installment of a car and insurance. My husband and I plan on doing the same by keeping one of our cars and selling the other in the next few weeks.