The set comes along with 2 pairs of replacement hands and two extra head versions with its mouth opens wider than the other. There are no big difference in head and hand swapping than other S.H. Figuarts Kamen Rider releases.
Kamen Rider Shin in S.H. Figuarts form is a fantastic figure despite he is the least fan favorite in the franchise. Hence I agree why he is positioned as a Tamashii Web Shop exclusive. I also have no qualms on how many replacement parts this set carries because he only does just that. But to be fair, he is more poseable than other popular S.H. Figuarts available in the market.