Today someone asked me what I thought was the biggest "moat" that @uber has built up. This is a hard and complicated question that someone who knows a lot about company strategy and/or Uber can probably write a book (or books) on.
My extremely simplistic and personal view though is that Uber's biggest "moat" that prevents me from even trying anything else is TRUST.
I, quite simply, TRUST Uber and Uber's service. They do what they say they will, when they say they will.
It could have started with the tech/logistics that they built up, but the reason people continue to use Uber, in my view, is trust.
How did they get there for me? By consistently and reliably providing the exact service I expect at a reasonable cost and by working, every single time.
I've probably taken 80-100 Uber rides over the years - by no means prolific, but then I only use them when I travel and I haven't been traveling that much. In all this time, I've only had 2 Uber rides cancelled on me and probably <5 that were delayed beyond the time that Uber predicted.
One time (a while ago) I literally waited for a "company taxi" for 1 hour and 30 mins because I was told that nothing else was allowed. I finally got tremendously fed-up, called an Uber, and said to hell with it, I'll pay for it myself if they won't reimburse me. The Uber arrived in exactly 3 minutes and I was on my way. The really interesting follow-up to this story is that the "company taxi" owner called me about 3 hours later when I had already had dinner with friends, checked into the hotel, and was getting ready for bed. He asked me if the cab had come on time and if I was satisfied with the service. I was so shocked that I think I told him what happened. He offered to give me a free taxi ride the next time I was in town and wanted me to take down his number. I hung up. After this, I never took a "company taxi" again and have been Uber'ing it everywhere when I travel.
So yes, Uber's moat, for me, is a Trust Moat more than anything else. As an entrepreneur or in life, a Trust Moat seems to be a good thing to build.