We had a wonderful time in the Crowsnest. This is top deck, forward and is a lounge, but is used by day primarily as a 180 degree viewing area.
Also, the Explorers Lounge, aft just in front of the dining room, has the most comfortable chairs and couches and very good-sized windows for viewing the passing scenery.
Since I've sailed Alaska twice on HAL, I must note that when you get to Glacier Bay or any other high-scenery locale, the Crowsnest will probably be packed with people and all the good view seats taken. It is best to view the glaciers from an outside deck, anyways, so take some warm clothes (gloves, turtleneck or a scarf, maybe a hat).
The ship seems be to be quite well-run, with some amount of attention to detail. Lido food is fine, but quite standard fare; the main dining room food is far better: typical choices, but with excellent sauces and presentation.
Seattle disembarkation was the best of any HAL cruise we have been on. You can stay in your room (turn on the radio to #5 for announcements) until your number is called. Everything is very well organized, smoothly arranged, with staff on shore who know what they are doing. Bus transportation to the airport is about 15 minutes and they let us off 20 feet from our check-in counter!
Hope you have a great time on your Alaska cruise. If you have further ,specific question, please let me know. One thing about a 33 day cruise: you really come to know the ship inside-out!
I just got off the Amsterdam from the Seattle-Hawaii-Seattle cruise.
The ship was unremarkable as was the food in the dining room and the Lido. The daily activities were horrible. There was pretty much nothing to do all day.
The rooms, even the Dolphin Deck inside cabins, were wonderfully sized, beds were comfortible and the bathroom was well lit and roomy. The staff was absolutely top notch.
Ages on this cruise were pertty much in the over 70 range. Two small children (4 and 5ish) were on board and the older people made it absolutely clear that they didn't want to be seated or standing anywhere near them. Unfortunately that family had a miserable time on board.
Getting off the ship was pretty smooth. There was a lack of porters once we were in the building but it still went pretty well. Going through immigration was a breeze.