Writing is going well.
A few busy weeks in work have staggered productive writing sessions, but the book is not suffering from it. Characters are very alive. Plot is moving along nicely. Fleshing out scenes and twists and turns is fun. It feels very like the Tome writing phase at the moment.
I'm itching to get working on other projects too, which is great added motivation to keep this momentum going. No promises of a release date yet, but maybe don't start any long series any time soon.