Let me start by saying Nedrra and Daerick are the best AirBnB hosts we have ever had and their studio rental is beautiful. If you are looking to stay in the Volcano/Hilo area, I will echo what we read before booking: just save yourself the time and book this right now. We particularly appreciated the everyday items that the studio is kept stocked with, things like coffee filters, grounds, whitener, sugar, spices, tea, basic first-aid (bandaids, after-bite, polysporin) q-tips etc. - all the little things you might need one of while on a trip.
While the unit does not have A/C and this was initially a concern for us when booking, we soon realized it is not at all needed. Even on sunny, hot days the studio is well ventilated and stays very cool - one morning we even needed the provided heater to chase away the cool jungle air.
This is the perfect place to stay while seeing the south and south-east parts of the island, our favorite sites for the area were South-point and the green sand beach, Volcano national park and Chain of Craters drive, lava flow viewing out of Kalapana, and the drive along Kalapana - Kapoho Rd, especially the Ahalanui County Beach park with the surf fed swimming pool!