Honestly I love it, it does exactly what I need it to do - provide somewhere to grip that feels good in the hand. Would it be slightly more useful if it had a cold shoe mount on top and the ability to move up/down independent of the cage? Totally, but thats not worth the $60 price difference for the SmallRig ones IMO. (unless you need the up/down mobility to make it work on your rig)
The one side handle I would consider is SmallRig's new one made for the Pocket 4k - it had a slot to hide a T5 SSD which seems like the perfect solution honestly. I just wish it was cheaper than $99.