Based on people who have seen him play - he looks to be one with good potential and his stats seem promising as well. But I worry if he is to be the first choice for the LWB role for now. I don't think the environment at this moment is conducive to any of these young players. It looks to be really hampering most of the current crop.
Look at what's happened to Garnacho, who's gone backwards. We're fine to sell him cause he is inconsistent, probably using the proceeds to bring in other young players like Dorgu, who could also end up being inconsistent (expected at this age). Garnacho, Zirkzee, Hojlund, Mainoo - none of them are anywhere near the required levels for a half decent PL club right now, but that's not down entirely due to lack of talent. Is it sensible to add another promising but probably inconsistent young player to the pressure cooker?
Ideally, he should be the back up to a more senior and established player (don't say we have Shaw), but looks like if he comes in, he'll be the senior to 17 year Deigo Leon (when he comes in the summer). I really hope he succeeds, but this is a big risk. Would probably have been safer to go for a PL proven player like Kerkez, even for a slight premium. Anyhow, hope the fee isn't more than £30m including all addons, else it wouldn't make any sense.