I have three different varieties in my garden, and each one is different. I love all of them, but won't let them anywhere near the house as it can get quite invasive. If you keep on top of it though, there is absolutely no reason why it can't be a very beautiful addition to the garden. If all you want to do is cover a shed with it then it will do so quickly and effectively for you. Just remember the old saying... 1st year it sleeps, 2nd year it creeps, and the 3rd year it leaps.