It might very well be and honestly, I don’t even know if they rent individual rooms anymore. It’s been years since we stayed there and many changes since then, one of which possibly includes the purchase by a Canadian airline charter company. And that, too, may have changed…..or perhaps referred to the now defunct Sonesta Great Bay only.

And re the AI thing - I’ve rented AI properties for location and the breakfast buffets and drinks yet dined elsewhere by choice for the sake of experiencing other options.

But IF they do rent individual rooms and have availability it answers all the needs of the OP - no car needed, easy access to food and drink, convenient shopping for almost anything including the typical souvenirs many often want to purchase. And both beach and evening entertainment right there.

And after all that, it’s probably not available.🙂🙂