What I don't like about Maxwell? This could be the longest entry ever....
I'll start at Taunton which, I think, was his debut. My first sighting, anyway. He got out playing the worst defensive stroke, technically, I have ever seen from a batsman. Just about everything was wrong with it, but most of all my perception was that this was a bloke who held Yorkshire cricket in contempt, that the game he was playing in was no more important than backyard cricket with his mates.
https://flic.kr/p/tKroe5
That impression was reinforced at Headingly when we played Middlesex. The two teams were obvious title contenders. Maxwell came in to bat with the game absolutely in the balance in the fourth innings. First ball, he attempted to reverse-slog Roland-Jones, clearly premeditated. The ball passed over the top of middle stump Fortunately for us, we had a teenager who kept his head, and we went on to win the game, and the title. Will Rhodes has also won a title as captain, since.
I'm not sure of the order, chronologically, but Maxwell also lost us a Roses T20 (I think - might have been 50 overs) by missing the stumps from point blank range for a run out, and Buttler went on to win the game that was ours 99% with that wicket. Maxwell was dropped by Yorkshire at one stage, and I saw him out for a duck at Scarborough, against Derbyshire 2s. He did get a century in the second innings, but I wasn't there.
However, I was there when he scored a 50-over century at Worcester, and also for the innings everyone remembers, the century in partnership with Rashid, against Durham at Scarborough. The plus-side of not caring, is that you don't feel pressured by situations. Anyway, he did this, and that innings made up for earlier failures. To a degree. To me, he was the most unprofessional overseas cricketer I have ever seen, or ever want to see.
Hope that answers it.