Time is money, and if so, this is the best 25usd you'd spend upon arrival in Ho Chi Minh city international airport! At 7pm, the immigration line was super long. Having a fast pass means someone will have your name on a card board, once you identify yourself, he guides u to queue up a much shorter queue. I must have saved at least an hour or two! Consider i arrived at 7pm, was able to be already at my hotel after district 1 by 8pm, having my delicious dinner, was something definitely worth it!