Seems like this is a real hit or miss with people. I personally like it since it makes the dash's shape look less bulky and the center "stack" less cluttered (on the CLA it is already cluttered enough without a screen in it). But many also consider it tacky and cheap, especially since it looks "stuck on." I'm actually most surprised by my Apple worshiper friends who I thought would like the idea of an iPad on their car. The only thing I don't like about it is that until it becomes more common, I don't like the idea of a big iPad sitting like a satnav on my dash for any would be car thief to see.
I know Mazda and Skoda along with Mercedes is going along with the "stuck on" look. Buick has a halfway big lump attaching the infotainment to the dash where it is on the Merc. Audi and Aston both have versions of a pop up that when up is similar to the Merc. Some Toyotas also have an infotainment that is somewhat similar. So it's not a purely Mercedes thing.
Anyways what are your thoughts?