Depends who you get the wrap from.
I took a jwrap wrap off an old mod before I tossed it, and yea, it all came off, little residue. I'm sure a bit of alcohol would have made the mod near perfect.
But the point? My wraps seem to outlast the mods they are stuck onto. They look great after 2, 3, 4 years. And the mods that are left unwrapped look like they went through some mid-age battle!!!
Go ahead, pick something cool, and enjoy it.