HSH clinic is i think where Rooney got his hairtransplant. Judging from his results i am not impressed. They dont have many independent reviews online so better avoid them.
Spex list is just a list of doctors that he co-operates with, definately not the top 25 doctors in the world. You will find doctors in this list that are doing mostly smp or questionable regenerative therapies, you will find doctors in this list that dont even perform surgery anymore. They are in this list because Spex sends patients to these clinics and he gets a comission for it.