It was very busy. With the 2fer going on, many locals are taking advantage of it. The weather was also warm and that brought out some more. As we get closer to Easter, I only see it staying busy at both parks.
Jiminy Cricket Fan
It has been getting quite busy. I was there yesterday and the warm weather brought out the crowds - it took me 20 minutes to get to the park from home, and about an hour to get from the parking structure INTO Disneyland! And when I left at around 3 pm there were still large amounts of people - traffic was backed up on Disneyland Drive over by the I-5N exit.
I'd advise for you to get there early so you can enjoy the park before it gets too crowded - and get your fastpasses early as well.