We had a less than stellar experience at Topolino's at dinner for our anniversary (loved it for brunch, but obviously a different experience). Have always had a superb dinner at California Grill.
In terms of ambiance, I feel like Topolino's is very dependent on where your table is. We were far from the windows and so had no real view since the restaurant is a big square shape. At Cali Grill, because it has more of a narrow strip of tables curved around the the windows, the view is much better even when you are not right up against the windows. Also not as much as to see out the windows--at Cali Grill, you see the castle and lagoon, at Topolino's the nearest windows to us just looked toward some disney springs area hotels.
We started with the olives and ricotta, thinking that while both sounded simple, they might be done really well. Bad ideas. Nothing extraordinary about the olives, except the price, and the fact that none of them were the types of olives you'd actually find at the riviera. The ricotta was just bland.
Service was extremely slow. Water not refilled despite heat in august and server was nowhere to be found to request more. Waited so long for the check, I just told my husband and kids to leave and go back to the room while I waited to pay as the kids were getting bored/antsy. Still waited a very long time after being the only person at the table, holding my disney visa in my hand.
I was really excited for the "classic sole meuniere" at Topolinos because I've been to the French Riviera many times as a child (I grew up overseas) and it was always my favorite dish., but it came out very dry/overcooked, and the sauce was extremely salty and overwhelmed rather than complimented the dish. The side of "petite potatoes" was very greasy and served with the skins on, which is not authentic--they'd always be served peeled with a little olive oil in France.
Obviously, experiences vary, but it was really disappointing. I will chalk some of it up to growing pains being a new restaurant, especially since we went August last year not long after reopening. But we were also at Cali grill on the same trip and it was as perfect as always--likely because it had more experienced staff (our server had worked there for decades). I will probably give it one second chance but at the price, will give it a couple of years to iron out the kinks first.