I paid more than I expected to pay given the calculations they provide on their website, it's more expensive than other pages because they have service fee and shop fee, they take a lot of time to buy the items so I could not buy all I wanted. However, the service was very reactive and shipping was really fast. Due to the shipping priority the cost is expensive too, they do not offer shipping options.
I would use this service again because they give us the oportunity to buy all korean items we want.