Just got off the Dawn Princess last week. We were in Baja 528 [Baja is deck 10, remember that because the elevators only have numbers] . The Baja balconies are perfect for two people, plenty of room. We were in cabin catergory BB and we were very happy. It was cozy, but there was enough room to do everything you need to do. There is plenty of storage. The bathrooms are a little small but you make do. The only place I think they would be a problem is if you were handicapped in some way.
We saw College Fjord and Glacier Bay right from our balcony. It was great. Room service brought our lunch in Glacier Bay and we just enjoyed. You will read a lot about not getting to see as much from your balcony. I don't agreed. We saw everything without problem. The only time we went on deck was for whale watching. It was COLD, but we braved it and were treated to a great experience. Eight to ten whales, right at the month of Glacier Bay. After watching for a while we went down to our cabin, ordered a pot of coffee and watched them from there. Once again we could see just as well as on deck.
I hope this has been helpful. Have a super cruise the DP is great.