Thus far, the transfer has been clunky. Most of us that have started the transfer are stuck in a Q (see my Posey in transfer mode). Per a morning update, there are ~100,000 NFT's in the Q, with an average of 4000 transferring a day. About 25 days to transfer. Landing page at OpenSea is not showing the NFT or very hard to find. Lots of work still to be done. Have not heard of the mechanics of one sale happening on OpenSea yet. No one is happy about the short notice of the marketplace shutting down on 3/31, and you have to initiate the transfer of your NFT's by 5/31. If you have collectibles there, I advise getting started on your transfer sooner than later.