I ordered a S20 from Samsung when it was released two years ago. Shipping was fast and no problem. However, I returned it under their return policy. Shipping it back was easy, they received it (and the free buds); however, two weeks later they came across and said it was never received. Took a week to get that straightened out even though I had FedEx proof it was delivered, and I had an email it was received.
I would have no problem ordering from them again; however, I would prefer to order from Amazon, even if was a day or two longer before shipping. I'm "guessing" the phones will go up for sale on Amazon's site Feb 9 or day after when announced by Samsung. They will not ship any sooner, so it will say something like "shipping (date)."