The bus driver to the airport seemed unfriendly. I had my big travel backpack with me and before boarding, he said that he should not put it on a seat.
I found the most budget accommodation on AirBNB.
I can recommend as location the capital Saint John. It’s centrally located and you can explore the rest of the island cost-effective with buses.
I stayed in an AirBNB with a 30-minute walk to the central bus station. Around the corner were a mini market and a 15-minute walk a larger supermarket. It had AC, a fan, a fridge, a microwave, and cutlery. In the microwave, I made myself warm coffee for breakfast and oatmeal porridge.