We stayed at the Hyatt almost a year ago, and we loved it. It is in neighbouring Garden Grove. Because we had 2 DDs, we spent an extra $15 to get the upgrade to a kidsuite. The suites are in the new tower (forget whether it's North or South), and are beautiful. The kids got their own room with bunk beds, kid-sized table and chairs, and a TV. We got a king-sized bed, fridge, and microwave, and another TV. Very nice and comfortable rooms.
The older tower where my parents had a room were not as nice. They were standard rooms and were tidy, but were a bit worn. Those rooms didn't have a fridge or microwave.
We found the fridge and microwave useful, because we all went out to Buca di Beppo for dinner one night, and had a huge amount of leftovers. We kept it in our fridge and microwaved it for dinner the next night.
Buca is next door to the Hyatt, in front of Hilton Homewood Suites. You'll also find Red Robin, Outback, and Joe's Crab Shack across the street. Target is kitty corner from the hotel--very handy for getting a case of bottled water instead of spending big $$$ for bottled water in the parks.
You would more likely take the shuttle to/from DL, esp. after a long day at the parks. The shuttle is like a coach bus, always on time, and we never really had to wait for it. I don't know what time the shuttle service ended though. We have 2 small children who never stayed up that late. There's a Starbucks near where the shuttle bus stop. The Hyatt's restaurant was good for breakfast but expensive.
Have fun!
