Not a fan of touchscreen on inclined surfaces, personally. I think the ergonomics of this will be bad for shoulders/elbows.

Like the iPad when it’s docked to its smart keyboard, I don’t like touching it at the point, it’s better to use the trackpad that’s laying flat.

It also wobbles when you do touch it. The macbook may not do the wobble, but it will constantly push further open and this may weaken the hinge mechanism over time.