Welcome aboard, Joachim! Planning a Disney Cruise is always magical, but since you've already sailed twice, you have a great idea of the magic that is in store!
Concierge guests will have access to special pre-arrival service with the concierge team. Earlier booking for everything from Port Adventures to Adult Dining, and help with any special request, celebration or seating request.
Once you arrive, you'll have a special check-in area and lounge, and be able to board the ship in the first group. Then, you'll be ushered to a special Concierge reception where you get to meet your Concierge team and enjoy food and drinks. Throughout the sailing, you can enjoy a Concierge sun deck and the Concierge Lounge. Many guests say that on the Dream and Fantasy, the lounge alone is worth the extra cost of sailing in a Concierge stateroom. There are delicious foods and drinks, including alcoholic drinks, available which are all complimentary. You can order from the main dining rooms to eat in your stateroom. You'll get fabulous extras in the way of extra body products from the H2O line, and the most luxurious robes you'll ever wear. Add to this the fact that your Concierge is there to serve you 24 hours a day and ready to help with any special requests, it really makes for a wonderful way to sail.
So, if you want the luxury of having someone to take care of all the details for you, Joachim, and the price fits your budget, by all means, book a Concierge stateroom on the Fantasy!
If you're not so sure you'd need or want all the extra assistance and the lounge doesn't appeal to you, then you might be better off in a different stateroom and using the extra money you save to book another cruise or add on some extra special Port Adventures to this one. I hope those details help. Happy planning!