Gitte,
We checked out 7002 and 7003 on the Millie when we were on her in August...because we originally booked 7003 for the Summit before switching later to the Sky Suites for that cruise...
I believe both of those corner cabins are larger than the two inside...
As far as amenities go, they are the same as any other outside cabin on the ship...
The difference--and it's a big difference--is that they are CONSIDERABLY larger...there is quite a bit of open floor space...so you won't have to trip over the bed and chair and maneuver your way around your spouse when getting dressed...and the feeling is one of lots of room...
One disappointment is that there is still only the one window...and it's a round one facing the front of the ship...So, you don't have any kind of panoramic view like you would with a sliding glass door in a balcony cabin...
All in all, I'd take it any time over any other outside window cabin on the ship...
Of course, the Sky Suites we're getting instead are better...but also twice the price for roughly the same size cabin...