WOW! I just received my 28-60 from MPB. I removed my 24-105 from my A7RIV, mounted the 28-60 and removed the extended grip / L bracket. What a nice small package! I realize it is not as small as an A7C but very compact by my standards and still large enough to get a good grip on it with my xtra-large hands!
I look forwards to getting out and using the lens. I can see my A7RIV going a lot of places that I would not have taken it before!
I have no feedback positive or negative on the image quality yet.
Does anyone have any recommendations for a nice small camera case that will accommodate a full sized A7 body (ArRIV preferred) and this lens for protecting the pair while still being small in size? I think I might purchase one of the auto closing lens covers linked to in a previous post.
I started a thread awhile back when I decided to skip getting an A7C and just buy the 28-60 for my A7RIII or IV. And bags came up in that thread. This post shows a small Lowepro I have and in the message I quoted there’s a some other options mentioned. Mine would definitely fit the R4 though the photo shows my R3 in the bag. Not much room for anything else though. My favourite bags at the moment are the Peak Design Everyday Sling series. I have a 10L and 6L, the latter is quite small but not tiny. However I can carry my reading glasses, phone, batteries, wallet and some accessories, and even one or two moderate sized lens in the 6L. There is a 3L which I’ve skipped seeing as I have a number of spare bags but that one might be ideal for you. Here’s a
link to that thread.

PD Everyday Sling 6L and the Lowepro mentioned above.

Lowepro with A7RIII + 28-60