These do exactly what I wanted.  I am using in a small sitting room looking out to the canal.  Lets light in.  No privacy so keep that in mind when ordering.  Easy to install.  I will not be rolling up and down.  Rolled to about half and leaving.   Kind of a pain if you need to do that on a daily basis since there is not string or wand to mechanically lift, which I was well aware of when I ordered.  Would recommend.