As someone who is in the program right now, I can say all of that is true.
I would recommend not going with housing; I have a room right on the deck unfortunately and the late night partying, underage drinking and smoking (which is seeping into our room) gets old, especially when you have a shift the next morning.
It is more difficult to get into DLR. This year I believe they said there were about 2,000 applicants and about 200 of us made it in. If you take notes long in advance and practice practice PRACTICE your interview, you'll do just fine
And yes, the CM's don't like us very much. I've learned to ignore it and so will you. You just gotta remind yourself that anyone stupid enough to think YOU'RE taking their hours and not DISNEY, isn't worthy of your time.