I love using Buyee. I have been a regular user for maybe three years now. I am able to buy Japan exclusive items using its platform, and the addition of the Mercari marketplace allows access to more sellers. I enjoy their free warehousing services, which I was able to take advantage of during the Covid outbreak. I was able to continue purchasing items online in spite of the many shipping restrictions worldwide, as I am able to stock them in the warehouse until the situation got better. Of course, buyee has some additional fees you can find burdensome, but you can take this out by using the various coupons they offer. There are even coupons that discount your international shipping rates. The key is to time your purchases whenever this coupons are available.