Tell me about Magic's Avengers Academy

[MC0810]

I have two sons turning 4 and 6. My younger son, the 4 year old, LOVES everything marvel, especially iron man. He would totally LOVE the avengers academy and iron man stuff in the MAGIC's kids club.

we are scheduled to sail on the fantasy next May 2015..I would really love to take a trip on the magic so he can experience the marvel stuff in the kids club...that is of course if we can afford it.

My questions are:

Did your kids enjoy the kids marvel stuff in the kids club?

What would you say is the perfect age to enjoy the marvel academy on the magic? is 4/5 too young?

Is it worth taking an additional cruise on the magic just to see or am I being silly...