It arrived, but was defective and I've already packed it up to return tomorrow.
I very much liked disc 1, which was done in a lively style, but track #8 consisted of static (though all others were fine). That pissed me off so much that I couldn't form serious impressions of discs 2 and 3 (though I listened).
My erudition in the area of harpsichord recordings is insufficient to make significant recommendations. I definitely enjoy Hantai's Goldbergs (older release on Opus 111), and he's long been well-regarded. The reviews I've read of his Scarlatti are excellent.
I will almost certainly order a replacement set. In purely economic terms, the big complete box by Scott Ross (34 discs for $54 + S/H from Amazon sellers) has a good reputation and is a far better deal than $22 + S/H for this one. But I avoid mega-boxes (most of the discs never get played), and 34 CDs is serious overkill for me in this repertory.