Well, I like it (not surprisingly 🙂). The base game is simple to learn, and I like the theme of saving your forest from a menacing fire. You might enlist the aid of a critter (there are 32 (4x8 different ones)). There are a couple of 'built-in' expansions to add variety and elevate the challenge. I'd say it's a worthy addition to a Solo Collection.
How good is Sylvion? This is the Oniverse game I'm most tempted about.