Edit: I've owned this grip for quite some time now, we'll over a year. Still works like the day I bought it and I haven't been careful with it. Upgrading to 5 stars because this truly is an fantastic product for an unbelievable price.

I've owned this grip for a little over a month now and I can't imagine going back to shooting without one. As far as value goes, it can't be beat at $60 to Sony's $350. Sure, the build quality is not as good but the difference isn't enough to justify an additional $290 IMO.

Pros:
-$290 less than Sony version.
-Extra battery slot, haven't needed to change a battery during a shoot since I got this.
-Easier to shoot in portrait orientation.
-Doesn't drain batteries if you switch off the camera but leave the grip switched on.
-Grip texture matches camera body.
- Has a slot for your battery door so you don't lose it.
-If it breaks you can just buy another one and still save over $200 vs the Sony grip.

Cons:
-No wheel on the back so ISO adjustment is a bit annoying unless you have extra long thumbs and can reach the wheel on the camera without moving your hand.
- Focus/shutter button has a different feel than the camera. More of a tactile click. Could be a + for some but dealbreaker for others.

I have shot over 60k photos with this grip, I purchased it in 2018 and still to this day zero issues with it. I shoot for work and this grip feels, looks and works almost as if it did as day one minus the abuse marks from wear and tear. If I remember correctly I paid $100 for mine back in 2018, hopefully this works for the a7siii as I'll be ordering another one for it.

Stoked that it's given me zero issues and not sure why anyone would pay the $400+ whatever for the Sony model.

I ordered this product as a mistake as I'm in the market for an a7 grip not an a9 grip. The product was delivered in two days instead of my chosen 4 day which was incredible. The product was as if I bought it in store. The box was flawless as well as its contents. I realized I purchased the wrong grip and my refund was initiated and solved problem free. Although I returned the item, I highly recommend this seller!! Wish I could give 6 stars!

I love it

I love this grip, great quality, affordable, etc"¦.my only complaint is that occasionally it resets my AP/SP settings if you power off the camera and the grip. Always leave the camera power on. Also my hands are a little chunkier so when holding in landscape mode, I sometimes press other buttons on the grip haha no big deal for me but may be for others"¦worth the buy though over Sony's.