"Legoland, is it worth it?"
NO!
That's the quick answer....here's why:
1. They charge you an arm and a leg to get in the door. Price is too high.
2. After DL, it's a big let down as there are not alot of rides (we rode everything there in half a day).
3. While the first few Lego models are kinda cute, even my big Lego nut kid got bored looking at Lego buildings.
4. The whole place is set up to sell you...surprise...more Legos to take home...so w/a Lego nut you will end up taking home lots of full-priced Lego kits that you can get cheaper at Target at home.
5. Food was less than spectacular and it's in the middle of nowhere so you can't just leave for lunch. At least "apple fries" were OK.
That said, here are the positives:
1. Several rides are "kid powered" so unlike Disney, there is some creative engagement in the park
2. Each ride has Lego play area for kids while you wait in line (my kids only went once as it was pretty crowded and behavior of some in this area was BAD)
3. We have lots of pics of kids w/Lego models they would never have seen otherwise.
4. Once you go, you can mark it off the list of "have to do" and call it "done" and never have to do it again!
If you are doing CityPass, I would not add Legoland on unless you do it before all the other stuff as it won't be anything like Knotts, DL or SeaWorld!