Curious how do you use it in bed or on couch ? Especially what case / keyboard you use ?
No keyboard, just a TPU back case. Initially, I tried the Smart Cover, and that worked well too, but decided I needed a back case to cover the edges of the iPad, which I find hurts my palms. And I decided to go back cover only, to keep the weight down. I just sit with my knees raised and prop my iPad on top of my legs, and I find that holds the iPad at a perfect angle to type on the on-screen keyboard. I know this position doesn't work for everyone, but it works for me.
I think his point is about the camera on 12.9" iPad. And yes it is mediocre at the best.
Sure, the camera in 9.7 is better, but it's sort of a "bonus" feature. I agree with sracer that calling the 12.9 a botched product because of it is overly melodramatic.