For those considering other lines, I thought I would share some thoughts. We are avid cruisers and try to cruise at least once or twice a year. I am platinum on NCL (and gold on DCL fwiw) and we are just starting to get into RCCI more as well. NCL does a great job. They have made some changes that have caused some heart burn to many. You have to look at the bigger picture though. The changes to ala cart restaurants means you can actually spend less if you chose wisely. If you just want appetizers or a salad at one restaurant, then bounce over to another for entree and dessert, you can do that now and not have to pay the flat fee. You can still buy a dining package like before, but now you can cover just a couple of days or the entire cruise. They hadn't raised the DSC in like 4-5 years, so it was not unexpected. If you haven't sailed in the Haven or even a suite on NCL you should try it at least once. I've sailed concierge on DCL and while it is great, it comes up just a bit behind the NCL offering (sorry). Our last trip was to Bermuda. One of the best cruises we've ever done, having almost 3 days to explore the island was awesome. We were able to sail to Alaska on NCL in a suite with a butler and concierge for the same price as a standard veranda room on DCL, with basically the same itinerary.
All lines are out to make money. DCL is not immune to this fact. Sailing costs big bucks and I think while DCL sat the industry standard for a while the mass market lines are catching up quickly in terms of ships, food, entertainment and service. DCLs formula for success is tried and true, but it doesn't mean it can't get better.
NCL did not communicate their changes well, but as I see DCL roll out its new liquor policy, it seems that any way the spin it, it won't be well received. NCL did listen to their customers and rescind the silly no food in the cabin policy. They could have done a better job with this, and even their COO has admitted as much.
DCL is a very fine line and does many things well. I will never forget my kids faces when they were little and got a hug from Cinderella. It truly is a place to make magical memories. But it is difficult to compare it to others. DCL has 4 ships so they can be a bit more discriminate in their hiring and tighter in their customer service policies. Disney in general has written and published textbooks on customer service. They have cultivated a culture of outstanding service that is going to appeal to a wide audience. That said, on our last NCL cruise to Bermuda, we had the absolute best cabin steward that we have ever had on any cruise; on any line. I even borrowed some cash from the kids to up his tip, he was that good.
Food is always subjective and honestly I find DCL's offerings a bit on the boring side, so being able to go to different restaurants during a cruise, is a plus. Not every NCL or RCCI meal is going to be a hit, but neither is DCLs. You have to do a bit of research and figure out what you like and don't like. Expecting to go into any MDR and get blown away with 5 star cuisine every night is setting the bar too high. I also like the fact that I can grab a burger or wings at 2:00am after a few hands of black jack or some spins in the casino. I'm on vacation too so it is great to have these options readily available. On DCL one of the hardest things to do is find something interesting to do late night. Many nights I found my self up at the smokers bar above the pool (I don't smoke), because there were people there and the bar was still open.
NCL, CCL and RCCI are mass market lines. They offer a good time at a reasonably decent price. The cruise, as they say, is what you make of it. While I've had great times on DCL, but quite frankly they have priced me out of the market. My kids are 16 yo now. The ports of call and the adventures there mean more to them than what happens on board. In a recent comparison of Western Carib cruises, I found that RCCI has the best prices going. I had a 7 day sail booked on NCL, but changed over to RCCI because it sailed out of Port Canaveral, vs Miami (drive vs. air) and offered almost the same suite perks (but won't be the Haven). Shop around mousers you might find something out there that you like!

Thanks for letting me ramble.