I just finished my 100% run of Minish Cap! It's the first time I've played it in years and I think it's a really interesting Zelda that feels completely unique if you decide to 100% it. Kinstone Fusion is a really interesting idea for a Zelda game and it means a lot of different things for the 100% run, like needing to know what points/people of interest you need to fuse with for specific things (like having a heart piece linked to any random Red Kinstone fusion, or six specific spots being required to finish the Goron Quest for the fourth bottle and needing to know what those are), and the entire game seems to throw huge quantities of rupees and mysterious shells at you on top of rewards for Kinstone fusion that made the hunt for all figurines very interesting, I had plenty of leftover rupees to exchange at the shop for shells by the end of it.
I think 100% Minish Cap was a really fun and interesting way to play a Zelda game, and it definitely slots into that kind of feeling I have for a game where I'm really glad I got to do it once in my life, but I can't see any reason I'd want to go and do it again. The game in general is just really good though, and it was especially neat picking up on a lot of its inspiration from Zelda 1.
I think 100% Minish Cap was a really fun and interesting way to play a Zelda game, and it definitely slots into that kind of feeling I have for a game where I'm really glad I got to do it once in my life, but I can't see any reason I'd want to go and do it again. The game in general is just really good though, and it was especially neat picking up on a lot of its inspiration from Zelda 1.