The stair treads are okay but not great.  Colour is consistent and they are all the same size, but they don't stay put - as you can see, and we hesitate to use two-sided tape because it will probably pull off the paint if/when we have to lift the treads for cleaning etc. For the money, not the quality we were expecting for our main staircase.  Not a total fail, but not what we were hoping for either.  We've had so much trouble finding carpet or treads for these stairs, we'll keep them until we can find something better and then use them somewhere else where the two-sided tape won't matter.