If done right, film can look just as good as real frosted glass. It takes patience but it's worth it. I had done this with my bathroom window and you couldn't tell it was film. What I used was a shower squeegee and I had cut the film a couple of inches wider than my window. You have to press hard on the film with the squeegee as you roll it down slowly and remove the protective paper as you go down. The sqeegee prevents the formation of air bubbles between the window and the film... I hope this helps and good luck !