My experience is that the Boris bike users are a bit more cautious than the experts on their own bikes.
Having tried them for 2 weeks I bought the annual pass. Have a route which involves very little traffic. Obviously it’s the right time of year but loving the bike commute and they make my heavy “alps” fs seem like a weight weenies special. Also I’ve been working out which pubs have Boris bike stands nearby, very convenient – ride to pub, beers, walk home.
Just wait till you experience the curse, no bikes when you arrive at stand or worse still full parking bays at your destination.
BTW still kicking myself for not riding a yellow one down the Mall on TdF day, I was late for work and didn’t have the time, there was a bike ready and waiting. I think I made the wrong choice. 😳