Twinglemum we ate at Storyteller's Cafe one night for dinner. We weren't interested so much in the buffet (prime rib, salmon, chicken strips, great desserts so much) as it was $26.95 and we were just not that hungry. But it looked great. We ordered off of the menu and it was delicious. We ate at Whitewater a few mornings as it is a quick and fairly inexpensive breakfast before going about 100 steps and you are right in California Adventure..it is that close. We also ate at Rainforest Cafe which has a fun atmosphere but ensure you get priority seating. We called a month out and were seated in 10 minutes. The wait line was 90 minutes. This happened everywhere throughout our stay as wait times always exceeded an hour if you did not have priority seating. Blue Bayou is a do not miss for atmosphere but is expensive and a somewhat limited menu. We didn't go this time but have gone many times in the past. If you drink lots of coffee or soft drinks I HIGHLY recommend getting the green mugs. They cost $7.95 and pay for themselves in two days. Coffee at Whitewater is about $2.80 a cup. It pays for itself in 3 cups as it does with soft drinks.
Whitewater cafe is right next to the Fountain Pool which is the smaller of the two adjacent pools but still pretty large. The redwood pool is behind the fountain pool and has a waterslide which was a lot of fun. Both pools have a view of the pier rides from Calif Adventure. The rooms are a good size for two (which we were) or four as there were many families staying there. The cast members said this was their last slow week as next Monday begins the Christmas crowds and he said they expect a HUGE crowd over the holidays. As for proximity to the parks. the GC is literally inside Calif Adventure. We came off of the elevator, made a left into the courtyard and a left into Calf Adventure, easily 1 minute from the elevator. You come out very close to the Grizzly River Rapids and to the right of Soarin' Over Calif (arguably the best ride in Calif Adventure). It is the only ride that all 4 times we rode it got a huge applause when it was done. The Unlimited FP was amazing. We had been to the park many times with regular FP but with this one we went to each ride right off and got a FP. Then since the park had just opened we rode standby on all of the same rides, came back an hour or so later and used our FP and then got fastpasses again for all of the rides. Monday night we rode Calif Screamin literally 3 times in a 30 minute period. When Calif Adventure opens you are so close to Soarin' that you would get there way before the people coming in through the front gate and be first in line for standby and to collect fastpasses. The Downtown Disney exit is out a long hallway and you come out right in front of Haagan Daz ice icream. Took us 4 minutes from the elevator to DD. When eating at DD we LOVED the Beignets from the Jazz kitchen. Had them one morning with a cup of nice warm coffee..yummmmmmmy
And the shopping at DD was a lot of fun also. They have very good musicians playing all along the street.
I think that answers your questions but please let me know if I can help further.