I know about his potential/talent or how he can be at his best, I seen enough of him in Twente back then, and he impressed me, past tense, because clearly showed later that he such a frustrating useless trickster with no end product. The main thing that annoys me is we are relying on him as starter in an important position. If he signed him as backup, which we seem to have done with Estigarribia, while signing some immediate impact/consistent/proven LW that we need, I would get it. But I do not like us relying on an inconsistent fuck up like him. We could have gotten several better choices, earlier in the summer. This is what happens when you prolong reinforcements for priority positions.
To put it simply, we can say as usual lets wait and see, and cross our fingers he will fullfill his potential, but I'm sick of saying that, everything he has done in a footie pitch last seasons suggest he is not good enough to start for a top club (or would be top club like we are nowadays). Dissapointing/unimpressive signing.