I used Bangladesh Postal Service several times. Surprisingly they delivered on time all the time. However, I had bad experience in opposite direction though (overseas to Bangladesh). It will be most reliable and fast if you can ship them from Cantonment post office. All overseas mails and parcels are accumulated in Dhaka Cantonment post office and then they are shipped to the airport. Only problem with postal service I can see now is Biman - they ship everything by Biman (and its affiliates) and recently all the stories about Biman are not good
