The 3 blackout blinds were reasonable quality and a good price (much better than those available from the original window manufacturer's)! My only gripes & comments are:
1. One blind had only one strip of adhesive tape instead of two.
2. The black out was not total (not a problem in this case)
3. The fabric was a bit ripply, probably due to the fitting of the little rubber guide pips along each edge.
4. Suggest that you use a bradawl for making holes in the window frame for the 6 screws.