new favorite game, how are the devs in terms of consistency w/ updates?
Hreinn Games could improve a lot. Quite simply, they have a deservedly bad PR.
Expanding on what
Jinsoyun said above, they have a severe problem communicating with their fans and being
honest and open. Everyone wishes them the best and always hope they would improve in this regard, but accusations of delivering less than stellar updates (which have been few and far lately), of milking their paying patrons, and being deceptive in many regards are things that
continually pops up. So while their game bucks the norms for adult gaming (which is good here), has a fairly open world (and not a straight up linear-like VN), and the choices are both meaningful and impactful, the dev team needs to work on restoring their good image and also the trust that some of their fans have lost in them.
Dante477 wrote the most recent review and had a lot of positive things to say about the game, but also mentioned something that goes to your question. Quoted below...
Hampered development; There's no denying that the game suffers heavily from it. The devs have an abysmal communication with their fanbase, constantly lie about improving and they lack of transparency. This is inexcusable behavior, they need to change. Otherwise, this will harm the game more than anything.
I, for one, agree wholeheartedly with this statement. In addition, new updates for the game (and not other stuff) seems to move more and more towards a biannual schedule. That seems to be the state of things as it stands currently. Hopefully that addresses your question and was informative. I mean, enjoy the game, but be prepared for a long wait between updates.