I got in this week the official samsung book case and I really like it. I wanted something slim fitting for it, and I like the ease of holding it. I was worried about how I would be able to fold the top cover back and then hold it in my hands and it feels pretty natural. I do wish there was an opening for the charger like there is for the headphones, but it's not a deal breaker. I just fold back the small flap and it still stays covered while charging.
It seems pretty solid and should protect it from any mild mishaps. Now I just need to find some screen protectors or anti-glare screen covers for daytime use. Any suggestions?