I'm a little underwhelmed so far, just doesn't have great dribbling or vision. Just seems a nice player for playing out of a press and making some 1-2s, a slightly better Wijnaldum.
It doesn't even make sense that he would be cheaper, it's just less is going to Tottenham. His value to buyers doesn't change because of his contract status.
From what I've heard his tactics been a complete flop in Qatar, taking 1st place to 3rd playing suicide football. I think he may be a little too dogmatic, failing to appreciate counter-strategies or his players' skillsets well enough.
The Arthur hype is ridiculous, he's had some tidy games, that's all. He's far from a player that can lift the team. Maybe his passing can develop into something special.
He's not far more technically gifted, people would be disappointed with that part of his game if he came. The crosses and goals are great, but he isn't particularly great in tight spaces or at dictating play.
Arthur isn't some massive upgrade on Rakitic against the elite teams, he's also completely meh. He does some important things better and some important things worse.