The game is so good

Definitely one of the best open-source games I've played. The level of polish is pretty high.
I never got much into the 3D Zelda games, since the change in perspective made them not as enjoyable to me as A Link to the Past, Link's Awakening and etc. were. I had beaten all 2D Zelda games, and it is nice to have a new one to play

I look forward to playing Children of Solarus someday as well! Having an entirely open-source Zelda-like game would be pretty cool. Although the Zelda world is interesting, I don't personally feel a particularly strong connection to it; it's more the Zelda-like gameplay that I enjoy.
If you are in need of sprites for Children of Solarus, let me know! I develop an open-source 2D game that utilizes a similar perspective, and I have been commissioning graphics from professional pixel artists for quite some time now, so that the game has a sizable collection of assets (all under open-source licenses, of course). Those could be useful to you. Even if you don't use them as they are, you could modify them for your purposes.