Relatively easy to put up, use a level to make a straight line for the first few blocks and away you go! They even folded beautifully in the corner (peel backing part way, stick one side, pushing it firmly in the corner, then pull the backing off slowly and stick the other side). Clean the wall of any oils/spills to give it a good surface to stick to, I put it up over paint and it stuck great! But be careful with peeling, the grey grout line pulls off with the backing very easily, go slowly.