A bit of both to be honest , there seemed to be quite a few on here saying Demirsoy had good results . The other two work through a company with all glossy reviews but upon delving deeper into it I now have my reservations. I’ve been told I need possibly between 3000-4000 depending on what doctor reviewed. Some in Europe who are doing great work charge 3-4 euro a graft which would cost me basically £10000 which I can’t unfortunately commit to .