It seems to address the important problems with Elm, around its overly restrictive project management, by 1. introducing more flexible package management (e.g. you can depend on a fork of a core package, or a private git repo etc.) 2. being open to adding various missing web APIs (e.g. while I'm not sure it's there yet, I expect websockets to make a return, which were dropped with Elm 0.19) 3. generally going for an open development model (even just not having to wait years to fix trivial crippling bugs in the compiler is a step forward...).

The other part is that I have a good impression of the person/people behind it and could see it sticking, for whatever that's worth.