Rozier reminds me of Reggie Jackson. Not quite as big, maybe a bit more athletic.
I'd be pretty pleased if he turned into a player like that, but it's still not clear how he's going to get enough playing time anytime soon to develop in that way.
Plus, Rozier is already 21. So we better hope he comes in and looks pretty good right away, because what you see is probably more or less what you get.