We have been in the S-class Family Veranda cabins (aka Ultra Deluxe Balcony) six times so far. Those cabins have two windows facing the front of the ship similar in design to the Prime Oceanview cabins adjacent to them.
I did not consider the windows to be too high but that is a matter of opinion. I have posted a couple of photos (one with a chair next to it) to let you decide.
The sharp angle of the windows will cause you to accidentally bump your head on occasion until you get trained on how close to the window you can stand.
Solstice, FV 8107, Dec 2019
Reflection, FV 8107, Jan 2019