Image quality test results have been added to the Sony FE 24-105mm f/4 G OSS Lens page.
I plan produce a full review of this lens in the near future.
For good reasons, the Sony FE 24-105mm f/4 G OSS Lens has been a hot seller and is available in stock in very limited supply at Amazon and Focus Camera. This lens is available for order at B&H, Adorama and WEX.