I admit, I'm one of the very few people that actually liked California Adventure as it was. I love California and liked the theme. I liked the Sun Fountain and the postcard mural entrance.
That being said, I was apprehensive of the changes. I shouldn't have been. The "new" California Adventure is amazing! From the art deco entrance to the whole feel of Buena Vista street, I found it completely charming and worthy of a Disney park. It definitely feels more like Disneyland now, and ties in better. The art deco buildings, the gorgeous Carthay Circle Theater....WOW! So impressed. We visited at Christmas, and the decorations were vintage and very pretty.
And Carsland.....again....WOW!!! It was like walking right into the movie. Every single little touch made me smile. Be sure to check out the memorablia in the queue for Luigi's Flying Tires. Tons of nods there. John Lassetire...heh. :) I hope that there are plans for more rides and attractions in Carsland, my only problem with it was that it seemed to be mostly merchandise. And sadly the Racers were out of service a lot of the time, and had a HUGE 2+ hour wait when it was running, so we didn't make it onto that one. Next time.
All in all I LOVE the changes!
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.