Agreed, shipping is very prompt, Dr. Lee is very helpfull and knowledgable. The Xandrox is much more pleasant to use than other types of minoxidil I have used in the past. But it is extremely expensive and therefore only worthwhile if the Azelaic Acid ingredient is worthwhile.
I decided to go with Xandox because of the Azelaic Acid and because I was hoping to get off finasteride and stick with topicals, hoping that Azelaic Acid and spironolactone would cover for the lack of oral finasteride. But my hair was falling out worse than I thought so stopping finasteride is not an option at this point.
If you are going to use finasteride, and most people probably should to get best results, then I think the premium paid for Xandrox is not worth it.
Note that Dr. Lee also sells a variety of Xandrox and other minoxidil preparations with or without Retin-A, betamethasone, varying amounts of PPG, etc. So I guess some people chose his products if they have PPG alergies or scalp problems with minoxidil.