It was relatively easy. If you dont rush it and do what he does in the video you shouldn't have any problems. Yup it's the teak wood skin and it doesn't leave any residue and air bubbles are non existant as well! i put on and took it off a few times to readjust it and it left nothing there. Also, the wood skins have a sort of faux wood finish to it so it has a little texture, i think it's a nice touch. Basically, if you are looking for a little protection but don't want a hard case and want to add a little style, this is perfect.
I am I little worried about there not being any vent holes on the bottom sticker though.