I don't think you can overstate how good he is. Cars are easier to drive, but he regularly pulls out single laps in quali that rank alongside the mythical Villeneuve laps from the seventies in the rain, or drives that equal Senna at his peak. The flip side of everything getting better in terms of technology, is that a lot of drivers fade into the pack (Vettel for example) when their rivals are in similar cars.
You look at the qualifying pole lap from Singapore in 2018 and it's mystifying. A car not suited to the track, Ferrari supposed to be miles ahead, and Hamilton was .3secs faster than verstappen and 6 tenths over Vettel. Bottas in the same car was 7 tenths down. Then the wins in the rain, the gut feel that makes him demand more of the team etc and they respond.
I love how much people say he's a nob, or that he's a nightmare and petulant, when you see the way his team react to him. They love him and he seems like a nice lad, just a bit... well, let's just say, confused