The Butty Buddy

[Shammua]

Has anyone seen or used this for the back seat?
I know the front seat isn't comfortable at all but it seems the back seat is even worse so I was wondering if anyone has used this on any bike of theirs.

http://www.amazon.com/dp/B00CPKV8JU/...=IU7MH0FD1M2TO

The main complaint is that there isn't enough seat, so I was thinking of modifing a front seat to fit on the back, but then I came across this and liked that not only does it give a full seat feature, it will also raise them up a bit higher for better view for them (another complaint).

Any input on this is greatly appreciated.