I bought this with my A7iii as I found my little finger dangling off the camera without any grip. How I'd wish it would sit on a tripod though !
Does a great job in adding just a little extra depth to the camera.
It is noticeably more comfortable to hold my A7c ii and , if your plan to use only OEM equipment, it’s the only way to go.
My camera doesn’t rock about when put on a table etc, despite being lop-sided.
Battery access is very easy. It blends in either the camera perfectly.
The big ‘however’ is the huge price.
I feel that at 40% of the list price, many would consider it too dear.