Way too early to really tell he's not fought anyone. But he's fascinating in the fact he's a switch hitter which is very rare at heavyweight, he seems to transition between both stances quite naturally.
I would compare his Level with Stephan Shaw, I think they are on a similar Level. But Arslan is younger and got more potential, you can see him getting better and better with every fight. He just looks stiff and seems to lack power - but he got solid fundamentals