Use Vera as the keyword in searching here and elsewhere, you will find plenty of results and general talk about Vera.
Vera is a hair mill, so it’s techs doing the procedure without a Drs involvement, hence why the results vary so much. You won’t know how experienced those techs are, what you need is a procedure which is led by a Dr and one who’s results are known and consistent.
For example Dr Pekiner, Dr Keser, HLC, Dr Bicer, Dr Yaman, Dr Demirsoy and Dr Turan/Dr Gur are better choices and results can be found both here and elsewhere.