I go this set after building & having the smaller designer set 4505.
And I have to say I was a bit disappointed by this one. I expected something more & to have more pieces after 4505. You can only build a couple of things from the instructions at the same time. You only get 2 new trans canopies as opposed to 3 in the smaller set & it could have done with more trapezoidal flags. There are insufficient standard slopes & inverted slopes, I would have thought there would be more of them to use in combnation with all the new curved slopes.

However my 4 year old is very pleased that I can make a pasasble stingray using the parts & colours from this set