Amex customer service is good, with platinum services, it is fantastic.
Being a AMEX platinum card holder, we sometime receive complimentary hotel stay, invitation to pre-launch event as well as a complimentary AMEX reserve card (you need to apply for it separately but is complimentary). On top of the usual benefits that comes with AMEX platinum card, you get the additional benefits offered by AMEX Reserve card.
The annual fee is hefty, no doubt about it. However the benefits are not only enjoyed by myself, my friend and family too.
The most valuable treat i enjoyed is the unlimited lounge access for me and my 2 sub card holders plus their guests.
The benefits it offer are more than the cost, worth it.