We deal in liquidated products ourselves, and I can tell you that you can get authentic big brands like coach through liquidators, but the loads are quite rare.
I currently have 6 customers wanting me to source brands like coach for them, and have had for the past 3 months.....can't find any available loads.
Do your research on the seller listing the items, it may be someone with an old load, maybe a liquidator themselves using the platform to clear some stock......and it may be the third alternative!
As I said, research the seller, and always be aware of the shipping and buyers premium that you will have to pay when you buy through liquidation.com