We took Grand Knik Tour (2 hours) with Steven (pilot and guide). Using headset, he gave us good information and we could ask questions during the flight. When we landed, we were given plenty of time to explore and take pictures with some safety guidance and friendly conversations.
This is somewhat of weather depending activity and we were concerned about it, but we got really lucky and have a wonderful sunny day. It seems like though that this area is calm and predictable weather from what we heard from the people there and some other reading. It is about one hour plus easy driving from Anchorage.
It is certainly not a budget item, but it was all worth it!! I recommend that people take any of the tours including lading. Yes, looking at glaciers from above is very interesting in itself, but it is very hard to understand the size of them until you get to land.
There were two of us and another group of two (total of four passengers - seems like they can fit two more). Since we had four legs of flying with three stops, we rotated seating, but discovered all seats were very good. Between land staff members and the pilot, they made us feel safe and at ease.