Love them!!  I decided on these treads after months of searching and I am totally satisfied with the quality and feel of the treads.  It took a minute for me to figure out how to get the self adhesive backing to work.  Finally figured that I should CAREFULLY score the tape with a paring knife (midway the tape at a slant).  Once I got the rhythm… finished in about 30 mins.  I have 15 stairs so had to order double.  Decided to make a top landing tread by placing two treads close together.  Works for me))