He has frozen TfL fares and brought in night tubes, secured funding for housing
The impact of freezing the fares (for some not all passengers) which coincided with a cut in government grants is that TFL is now struggling to pay interest on its debts, which in turn has meant that it’s had to cut back on the bus network, road maintenance and other investment programmes. This is a badly thought-through policy with negative longer term impact.
His housing policy has not been a success. I personally think that he massively over-promised on his building plans and has not been able to live up the expectations he set. He built far fewer homes than Boris during his first 2 years in office. He is now looking again at rent control measures which may have short-term positive impact (and win him the 2020 election) but there is a longer-term impact which is that rent control discourages private developers from building new properties. Again, another short term badly thought through policy.
He’s big into identity politics, so if you’re into that you’ll love him - endlessly banging on about diversity and spending time on important things like campaigns to make sure that cycling is acceptably inclusive by his standards. Because god forbid too many white men dominate the cycling lanes or that people should be able to determine for themselves as individuals whether they wish to cycle. No, our great mayor will make that determination for us based on his statistics about skin colour and gender!
Oh and everything that goes wrong is always the Tories’ fault. Always.
I voted for the guy and find him to be a massive disappointment.