This is not gonna be mind-blowing information as these sockets have been around for awhile, but I just bought some. Grey Pneumatic 3/8” drive DUO impact set #81659CRD with the case. They’re both standard and metric, regular and deep well, no size skips, plus two extensions that can wobble OR be solid, and a probably not so useful ratchet. Nice they include it, tho. I bought from ToolTopia.
Dont know what anyone else’s experience is with them, but I ordered on a Thursday at noon EDT and had them at my door by Saturday at 10 am EDT. Pretty darn fast. At $150, the price was $35-40 cheaper than anywhere else I found that actually had em in stock. National Tool Warehouse was $3 cheaper, but had issues with getting them to load into the cart. Id be interested to know what anyone thinks of the sockets or those two online dealers. There are a couple YouTube vids about em.