Accuphase Sound Selection SACDs

I became aware of these SACDs in a FaceBook group.  When I looked them up on Discogs and eBay, the going rate was $100+ each.

I found this website which seems to have information on these releases, but they require a credit card before allowing you to enter the site.

https://audiophilemusic.io/product-category/shop-accuphase-laboratory/

Does anyone have experience with Accuphase SACDs and these recordings.

Thanks!