There are several deck 8 verandah cabins which are classified as slightly obstructed. I don’t have actual photos of views of these cabins, but Cruise Critic member lambton has provided a picture which puts the “obstruction” in perspective. The issue is the gangway which stows above the Promenade deck, extending beyond the edge of the verandah by perhaps 6-8 feet. In the photo below, the gangway is above and immediately aft of the tender and the B2 cabins are the ones immediately above the gangway.
The gangway has absolutely no effect on the view looking out, but you cannot see the water immediately next to the ship. I would liken it to the difference in a driver’s view between a sedan and a minivan.