The quality of the wall decal is okay. The mounting assistance is useful. But in the "Installation procedure" there is no indication that you should work with larger tattoos with 2 people, or care not to apply the tattoo from the side (ie from left to right or vice versa) but if possible from top to bottom. The tattoo has Ruck Zuck "festgesaugt" on the wall thus I got an ugly wave in the subject. At the 2nd tattoo I have attached it from top to bottom. Because it did not happen. Have to say, but I am also wall tattoo newbie ;-)