This guy says that he is "happy with the results, but not satisfied". He got probably around 2000 grafts (I remember watching another video where he states that he could go with another hair transplant).
Now compare him with this guy here, who is also another spanish youtuber:
The guy comments in the video months after his hair transplant he started to see some eczemas in his scalp. He thought it was caused from the cold of winter. But they go away after quit minoxidil. Probabably he had an allergic reaction and the inflammation ruined in part his results..