The rooms are the same. The verandahs differ in that the Navigator's verandah is partially enclosed, with a large open-air porthole, probably 5 ft. or so in diameter. For the price, I like the category 7 rooms.
The Cat. 6's and 7's also differ in their location: the 7's are in the aft (rear) of the ship. Their is more vibration and movement in the back of the ship and it causes some people motion sickness. Here is a link to check out photos of both cabins and verandahs:
All the Cat 6s I have been in have been aft. In fact there are several Cat 6 that are more aft than the cat 7s. Go to dcltribute.com and find the platinum link where you can find pictures. I really like the Cat7s--very cozy.
Thanks to all for the replies. I really want a "true" open balcony, so the info on the partially enclosed verandah was especially helpful! BTW ... I couldn't get the "disneycruiserinfo" website to come-up at all.
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