I really like this window film and hope that it stays on the window.  I needed some privacy in my master bath but also wanted natural light to be able to come in so my plants can get bright indirect light.   My husband just installed this today and so far we like it.  I was not able to capture how much light comes in with my phone camera but it's a lot more than what my pictures show - I'm also not very good at taking pictures with my phone.