The Cali Grille is great. The only word of advice I have is plan for a long meal. Do not get there super hungry and be prepared for a 2 hour event. It is one of the best dining experiences on property.
Also, if you want a table with a view, early ressies are a must. Knowing that it will be 2 hours, get your ressies about 1:45 hours before Wishes. Be willing to wait for a good table. You can go to the observation deck, but nothing beats muching a steak while the fireworks are going off.