For all intents and purposes, DCL simply doesn't do group bookings (other than charters). They offer no group pricing or amenities for agents who want to book a group. This is simply because they don't have to. The ships fill up, without the extra perks to agents.
I was on one of the inaugurals for the Quantum. It was a press event really, and I got onboard as part of my company's annual convention.
I was very impressed with it. The food was very good. The stateroom was very nice, and its bathroom was better than the one I had on the Explorer of the Seas. You could turn around in the shower without rubbing up against the walls. The service at the time was below average. We were at lunch in one of the table-service restaurants and there was a problem with somebody's meal. I can't remember what it was, but it was kind of minor. Like the burger had come without tomatoes, or something like that. When she mentioned it to the server, he just sort of stood there and looked at her. I swear that I thought to myself, "Oh my god, he's going to ask her what she wants him to do about it." Thankfully, he didn't, but that was the vibe of the service for that sailing. Nobody really knew how to handle unusual situations.
The ship itself was pretty amazing, I thought. I loved the North Star, although I did it while in port, so it didn't go over the side of the ship. I also did the skydiving simulation, which was very cool. The "promenade" was fantastic. And the signature show that I saw (Starwater), was really weird. It was very cool, a lot of great music and acrobatics and staging (the staging was amazing, to be honest); but I could never tell if it was really innovative or just pretentious.
I don't remember a whole lot else off the top of my head, except that I thought the giant pink bear looked stupid. If you have specific questions, I'll try to answer them for you.
