We have the window, but there was not an opening one available at that time. I really don't miss it not opening, as there are four big opening ones in each corner.
It does let in a little bit more light at the sink which is nice, but it really is not useful for looking out of.
If I had to do it all over again, I would likely still put one in. We don't need any more storage like a shelf over the sink for our needs.
2017 Escape 5.0 TA (someday soon, I hope
2015 Ford F150 Lariat 3.5L EcoBoost
2009 Escape 19 (previous)
“Most folks are about as happy as they make up their minds to be.” — Abraham Lincoln