Definitely a good deal. Having a Subscription option for early access and extra features I think is totally reasonable. I personally am a patient individual, and for someone like me, if I see something is available on Subscribestar early for the game and I don't feel like waiting, it's cool to have that option, and otherwise gives Supporters an option to donate with the incentive of early access. I know some Creators can't always release stuff monthly for their Subscribers, and that was perhaps a poor analogy I used, however in this case I just appreciate that there technically isn't a paywall to acquire any additional content for it after buying the game. 2 weeks really isn't that long, and if it were to be longer, I wouldn't have a problem Subscribing or just waiting.
Also, I feel like Chapter One being free (Thank the Kind Stars) gives the player a good chance to gauge whether the purchase for Chapter Two will be worth it, and if it wasn't, at least they can get a refund under honest circumstances, which is really outstanding that you would offer. But again, we should be doing our part here too, Chapter One being free should be the time the player wonders, do I enjoy the series so far and want to invest 10$ for Chapter Two? I feel like you are pretty communicative with your supporters in regards to updates and schedules, which can help a person gauge whether or not the project is active, what they thought it was, worth investing in, and what to expect. I do have a bias because I like the series, but I like to think there was unbiased logic in there that I hope makes sense to people in opposite situations as me, or for people who are curious about trying the Series 😁