Well, on this one the pieces actually fit really well, although you have to do some cleanup to remove the extra material. Only issue is that most likely the pieces are warped which means more work to flatten them again.
Another point is the RC kit has internal support, but the Anigrand doesn't (I would recommend adding some kind of support).
These days though they are about the same price, but the reason I got the Anigrand kit is because of the size--the RC kit is awesome, but very large and I don't have space for something that big.