I've seen maybe 48 minutes worth of a few different Mavs games (I stagger my Mavs watching minutes for when Doncic is on the floor), exactly how good has Doncic been? He's been awesome according to my eyetest, throwing dimes, getting a bunch of separation with the stepback and other moves, but I've also seen people clown on him a bit in other forums.
They keep talking about how fat he is, but to me it's a positive that he's productive despite not being in elite shape. His thick body game kinda reminds me of latter-day Paul Pierce, a comp I haven't seen anybody make, but they seem similar in a lot of ways to me