H3, two 4K Joeys. Dish sent me a voice remote for free as part of the deal to come back to Dish from Directv. Long story, but we ended up with 3 voice remotes/50s. So we have a 52, 3 50s, and two 40s.
I thought the voice remote would be very cool, especially for my wife, who is technology challenged.

Frustrated trying to figure out how to do something? Just say it! And the search capabilities are cool, for example, just saying Kansas City Royals or General Hospital or Hill Street Blues brings those up.
However, after more playing with it, I realize that the "cool" factor is wearing off, and I really just want to push a button to do what I want. It's not that big a deal to hit the search button and enter what you're looking for. In fact, it's nice to see the recommendations pop up as you are typing in your search.
It IS better than the 52, IMO, just because the 52 is lacking things like a "Stop" button. But the reason I like it better than the 52 that came with the H3 is more about the deficiencies in the 52 than it is how great the 50 is. And I find my wife keeps reaching for the 40.
Perhaps there are things the voice remote does that are easier/better than the 40? But I haven't yet found any significant advantages over what I can do with the 40.
So for now, we will end up ordering a 3rd 40 for the H3, and probably have 3 50s and a 52 in a box of unused remotes. (If anyone wants a deal on 3 brand new 50s, let me know.)