The main thing with guarantee cabins of any class is that you get a cabin in that class or better for a cheaper price. It is a gamble. If you want to have a particular cabin, select that one and pay for that privilege. We have had numerous gty cabins in different classes and have not been disappointed.
Not sure you get a choice of which type of cabin they quarantine you in, some have been balconies, others have been oceanviews, either way, it was not the cabin they booked in most cases.