Kettles and tea/ coffee are definitely only standard in Admirals Floor rooms. You can request a kettle at the Concierge desk or reception/ guest services but you usually have to pay a deposit and it depends if they have any available. They charge for tea/ coffee refillls which is why I take my own.
You cannot always have breakfast in the park - it can depend on which hotel you are staying in, and when you go. If they are offering this, it is in Plaza Gardens Restaurant just off Main Street, or possibly in Chalet De La Marionette ( Pinnocchio) restaurant in Fantasyland.
The breakfast buffet is the same as you get in the Moderate hotels, but no hot food.
Ask about breakfast in the park when you check in at reception if you are interested, and they will say if you can book this.
All guests of Disney hotels can enter the DL Park from 8am for EMH. If you decide to have breakfast in the park it will cut into your EMH as you cannot eat before 8am. They do not let you in earlier than this.
That is why we have breakfast at 7- 7.30 so we can make full use of EMH.
They will give you a list of rides that are open early when you check in along with park maps, programme etc, but it is best to do as much ride / attraction research and planning as you can before you go.
If you want Character breakfast at Cafe Mickey, hotel reception will give you a voucher towards the cost, but you have to make a reservation for this. Cafe Mickey breakfast buffet normal cost is ? 24 adult ? 16.20 child. I think the voucher covers about half the cost.
There is a lot of info and tips on the MLV forum link I gave you - look in the Top Questions list there. Too much to reproduce here.
HB Plus has a lot of choices of restaurants, and the one that we use. You can read reviews of the different restaurants and also see menus on www.dlrpmagic.com and also read reviews and see photos on Trip Advisor. I have written quite a few.
Dinner in the parks depends on park closing time, as restaurants are not open for dinner all year round - only when the park is open until late.
The Studios does not have any fine dining table service restaurants yet, but Walt's and Blue Lagoon in the DL Park are both Plus category and very good.
Auberge De Cendrillon is Prince/ Princess Character Dining but you would have to pay extra using your vouchers as this is Premium category.
Silver Spur Steakhouse in Frontierland is also a Plus category fine dining table service restaurant.
Buffets are good for people with healthy appetites as they are all you can eat. Also good for fussy kids as lots of choice. Kids under 3 eat free. The buffets in the parks are good but only Standard HB caregory, so not getting the best value for your money. ( Agrabah Cafe, Plaza Gardens, Restaurant Des Stars ). Lucky Nugget Saloon in Frontierland is a HB Plus category Character Tex Mex lunch buffet.
The buffet and table service restaurants in the NY Sequoia and NBC hotels are all Plus category. The Steakhouse in the Village is also good, but remember this is fine dining, so don't expect piles of chips!
Annettes Diner in the Village has good American style burgers and fries with good size portions, but this is only Standard HB category. You cannot make advance reservations for Annettes.
You can see photos of meals with restaurant reviews on TA to give you some idea.
You can find my DLP restaurant reviews and photos on TA here.
www.tripadvisor.co.uk/members-reviews/Figgygirl
You can use your Plus vouchers in Cafe Mickey for Character Lunch or Dinner.
I definitely recommend making ADR's to save disappointment. You can easily alter or cancel reservations if you change your mind later. Character meals are especially popular.