Underrated sounds promising. Dalot isn't the best defensively either, but at least Dest is relatively strong going forward from what you say.
emphasis on relative, though. His promise has been around for a while, but him delivering on it is still the question. I'm still not sure whether he'll answer, so it's a gamble.
But he is still underrated, since whether it's all jokes or isn't, he's not as incapable as some make him out to be, just very very inconsistent. But you have to show good stuff to be inconsistent and he definitely has. Spanish newspapers tend to not like readers with the capacity to remember things, but they've even called him the new Dani Alves a few times.
They also called him "how the feck did this guy and up at a club like Barcelona?", so yeah, he's inconsistent.