Are you going from the UK?
You will LOVE WDW! We fell in love with it! It is NOTHING like
Disneyland Paris, it will just take your breath away!
My boyfriend thought I was crazy in the beginning for wanting to plan where we ate 6 months in advance, well, the closer to the time we got, the more excited he got hearing about all these lovely places we were going to eat at. When we got there, he was thanking me even more as people were being turned away left, right, and centre or being told it was a 2 wait at least. This was last August.
Now we're going again this August and he is helping me plan all our ADRs - can we eat here again, can we eat there... and making sure I book them at the 180 day mark (which of course being a good DISer, I did

) I have all the menus printed off in my 'WDW' folder and we love going through them together and thinking of all the great places we'll be eating at!
Where else are you planning on eating? We LOVED 50s Prime Time Cafe, especially the Pot Roast and the S'Mores dessert!
I'm glad you've decided YES to ADRs - you really do need them if you have certain places you want to eat at, or you definitely want to eat TS/at a certain time. There are some certain ADRs you can't even get 4 or 5 months out, so earlier is definitely better!