Image quality test results have been added to the Sony FE 28-60mm f/4-5.6 Lens Review.
I think you will be impressed with these results. This tiny, affordable lens is a good performer.
Initially, the Sony FE 28-60mm f/4-5.6 Lens is only available in a kit with the Sony a7C. This kit is in stock at B&H | Adorama | Amazon USA | WEX
Eventually, the Sony FE 28-60mm f/4-5.6 Lens will be individually available. B&H says preorders start Feb 15th. Adorama and Amazon USA are not saying. WEX is taking preorders.