I like it, however there are a couple of drawbacks. 1) in NYC the drivers don't always know the quickest route to get places. I've had to provide directions a few times to befuddled drivers. 2) beware of "surge pricing". During busy times, especially in bad weather, Uber raises fares. Sometimes it's not too bad. 1.6 times the normal fare. During one snowstorm, I was quoted 6 times higher! Naturally, I declined.
Other than this, I like the service.