Customer service very poor, they don't know what they are handling or understand what they are clearing through customs and you have to chase them to get your own parcel cleared, they don't contact you.
I have used UPS several times now and found their services to be impeccable. Way better than some other couriers I have used. Plus, the delivery personnel is friendly and available, not rude. I will go to UPS whenever I need to send a package.