I ve send things from UK and it worked well, two of my things got sold easily and one (WOC) got returned as it had very slight crooked CC (which i got fixed from Chanel and now would send it again to FP). The return of WOC was a bit hectic as i had to pay tax and return postage charges. BTW i used FedEx and the service was great.
However recently i tried sending a couple of things from Kuwait (Middle East) to FP through Aramex and my things were held in USA (new york) customs for nearly a month and it was terrible experience, had to pay both ways tax (dont why Kuwait charged me tax when the parcel was a return one) and had to pay return postage too as it was taking too long and they were basically doing nothing. Cant say if it was Aramex or because things were sent from Kuwait that caused problem, but sending parcel from UK was very smooth. HTH