I prefer leather style cases, the "slim shell" or whatever they are suck IMO. And they're really thin; I've no clue how they're supposed to protect the tablet.
Here's mine. IT does add a bit of weight to the tablet, as it's not thin leather at all, nice sturdy but flexible case, with a magnetic flap that shuts the screen off when you close it.
No complaints, and it also fits with a controller.
Shield K1 + case does fit in the 9023, but not the case you linked.
I use this other leather case, also by Fintie. The shell case's rounded edges just won't grip in the controller, and pops out.
Also, unlike /u/freon noted here, the leather case doesn't cause wifi issues as far as I can tell. I use 5GHz wifi to gamestream without problems.
Note: if weight is a concern, the leather case I linked is heavier than the slim shell one, I've owned both. Returned the shell case though, I hated it. Too thin and flimsy feeling, on top of not fitting in the controller.